Long-Term Debt - Additional Information (Details) - USD ($)
$ / shares in Units, shares in Millions |
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1 Months Ended |
3 Months Ended |
9 Months Ended |
12 Months Ended |
13 Months Ended |
|
Sep. 07, 2016 |
May 31, 2015 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
Dec. 31, 2016 |
Sep. 30, 2017 |
Jun. 30, 2017 |
| Debt Instrument [Line Items] |
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| Debt instrument aggregate principal amount |
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$ 873,733,000
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$ 873,733,000
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$ 873,733,000
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| Gain on exchange of debt |
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$ 123,960,000
|
7,811,000
|
$ 123,960,000
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| 8.50% Unsecured Senior Notes, Due June 2019 |
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| Debt Instrument [Line Items] |
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| Debt instrument aggregate principal amount |
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$ 189,829,000
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$ 189,829,000
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$ 189,829,000
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| Debt instrument maturity date |
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Jun. 15, 2019
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Jun. 15, 2019
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| Debt instrument interest rate |
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8.50%
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8.50%
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8.50%
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| Debt instrument payment terms |
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semi-annually in arrears on June 15 and December 15
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| Annual effective interest rate |
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8.30%
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8.30%
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| 9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020 |
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| Debt Instrument [Line Items] |
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| Debt instrument aggregate principal amount |
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$ 163,007,000
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$ 163,007,000
|
$ 163,007,000
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| Debt instrument maturity date |
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May 15, 2020
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| Debt instrument interest rate |
9.00%
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9.00%
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9.00%
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| Debt instrument paid in kind interest rate |
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10.75%
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10.75%
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| Debt instrument payment terms |
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Cash interest accrues at 9.00% per annum and is payable on May 15 and November 15 of each year. The Second Lien PIK Toggle Notes contain provisions whereby certain semi-annual interest is added to the principal amount through payment-in-kind instead of being paid in cash in the then current semi-annual period. For the initial interest period ending November 15, 2016, interest could only be paid-in-kind at the annual rate of 10.75%. For interest periods through March 7, 2018, if we so elect, we have the option to pay all or a portion of interest in kind at a rate of 10.75% per annum.
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| Debt instrument stated interest rate percentage for payment-in-kind |
10.75%
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| 9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020 | Minimum |
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| Debt Instrument [Line Items] |
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| Cash interest payable stub period |
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Mar. 07, 2018
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| 9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020 | Maximum |
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| Debt Instrument [Line Items] |
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| Cash interest payable stub period |
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May 15, 2018
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| 8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021 |
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| Debt Instrument [Line Items] |
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| Debt instrument aggregate principal amount |
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$ 145,897,000
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|
145,897,000
|
$ 145,897,000
|
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| Debt instrument maturity date |
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Jun. 15, 2021
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| Debt instrument interest rate |
8.50%
|
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|
8.50%
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8.50%
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| Debt instrument paid in kind interest rate |
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10.00%
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10.00%
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| Debt instrument payment terms |
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The maturity date will accelerate to February 28, 2019 if the remaining Unsecured Senior Notes have not been extended, renewed, refunded, defeased, discharged, replaced or refinanced by February 28, 2019. Cash interest accrues at 8.50% per annum and is payable on June 15 and December 15 of each year. The Third Lien PIK Toggle Notes contain interest provisions whereby certain semi-annual interest is added to the principal amount through payment-in-kind instead of being paid in cash in the then current semi-annual period. For the initial interest period ending December 15, 2016, interest could only be paid in kind at the annual rate of 10.00%. For interest periods through September 7, 2018, if we so elect, we have the option to pay all or a portion of interest in kind at a rate of 10.00% per annum.
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| Debt instrument stated interest rate percentage for payment-in-kind |
10.00%
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| 11.00% 1.5 Lien Term Loan, Due November 2019 |
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| Debt Instrument [Line Items] |
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| Debt instrument aggregate principal amount |
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$ 75,000,000
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|
75,000,000
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$ 75,000,000
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| Debt instrument maturity date |
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Nov. 15, 2019
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| Debt instrument interest rate |
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11.00%
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11.00%
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| Second Lien PIK Toggle Notes and the Third Lien PIK Toggle Notes |
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| Debt Instrument [Line Items] |
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| Net reduction to long term debt |
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$ 8,200,000
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| Revolving Bank Credit Facility Due November 2018 |
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| Debt Instrument [Line Items] |
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| Revolving bank credit facility borrowing base |
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$ 150,000,000
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$ 150,000,000
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| Revolving bank credit facility maximum lender commitment |
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$ 150,000,000
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150,000,000
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| First lien leverage ratio |
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200.00%
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| Outstanding balances on the revolving bank credit facility (including letters of credit) |
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$ 5,000,000
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|
5,000,000
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| Unused portion of the borrowing base commitment fee |
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0.50%
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| Credit agreement expiration date |
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Nov. 08, 2018
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| Revolving bank credit facility borrowings outstanding |
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$ 0
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0
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0
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| Letters of credit outstanding |
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300,000
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500,000
|
300,000
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| Remaining availability |
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149,700,000
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149,700,000
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| Revolving Bank Credit Facility Due November 2018 | Scenario Covenants |
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| Debt Instrument [Line Items] |
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| Maximum unrestricted cash balance if revolver balance is above $5 million |
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$ 35,000,000
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35,000,000
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| Revolving Bank Credit Facility Due November 2018 | Minimum |
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| Debt Instrument [Line Items] |
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| Current ratio |
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100.00%
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| Revolving Bank Credit Facility Due November 2018 | Minimum | Eurodollar |
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| Debt Instrument [Line Items] |
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| Debt instrument, basis spread on variable rate |
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3.00%
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| Revolving Bank Credit Facility Due November 2018 | Maximum | Eurodollar |
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| Debt Instrument [Line Items] |
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| Debt instrument, basis spread on variable rate |
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4.00%
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| 11.00% 1.5 Lien Term Loan, Due November 2019 |
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| Debt Instrument [Line Items] |
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| Debt instrument maturity date |
Nov. 15, 2019
|
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| Debt instrument interest rate |
11.00%
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| Debt instrument payment terms |
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Interest accrues at 11.00% per annum and is payable quarterly in cash.
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| Debt instrument frequency of interest payment in cash |
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quarterly
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| Debt instrument, maturity date, description |
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1.5 Lien Term Loan on September 7, 2016 with a maturity date of November 15, 2019. The maturity date will accelerate to February 28, 2019 if the remaining Unsecured Senior Notes have not been extended, renewed, refunded, defeased, discharged, replaced or refinanced by February 28, 2019.
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| 9.00 % Second Lien Term Loan, Due May 2020 |
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| Debt Instrument [Line Items] |
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| Debt instrument aggregate principal amount |
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$ 300,000,000
|
|
$ 300,000,000
|
$ 300,000,000
|
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| Debt instrument maturity date |
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May 15, 2020
|
|
May 15, 2020
|
|
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| Debt instrument interest rate |
|
9.00%
|
|
9.00%
|
|
9.00%
|
9.00%
|
|
| Debt instrument payment terms |
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Interest on the Second Lien Term Loan is payable in arrears semi-annually on May 15 and November 15.
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| Debt instrument discount rate |
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1.00%
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| Annual effective interest rate |
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9.60%
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9.60%
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| Exchange Transaction |
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| Debt Instrument [Line Items] |
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| Gain on exchange of debt |
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|
$ 124,000,000
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|
$ 124,000,000
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| Deal transaction costs |
$ 18,900,000
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| Common stock issued value per share |
$ 1.76
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| Basic and diluted income (loss) per common share |
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$ 1.33
|
$ 0.06
|
$ 1.52
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| Additional expense charged to gain on exchange of debt |
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$ 400,000
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| Exchange Transaction | 8.50% Unsecured Senior Notes, Due June 2019 |
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| Debt Instrument [Line Items] |
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| Debt instrument aggregate principal amount |
$ 710,200,000
|
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| Percentage of unsecured senior notes exchanged |
79.00%
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| Debt instrument maturity date |
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|
Jun. 15, 2019
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| Exchange Transaction | 8.50% Unsecured Senior Notes, Due June 2019 | Common Stock |
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| Debt Instrument [Line Items] |
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| Debt conversion, common stock shares issued |
60.4
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| Exchange Transaction | 9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020 |
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| Debt Instrument [Line Items] |
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| Debt instrument aggregate principal amount |
$ 159,800,000
|
|
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| Debt instrument maturity date |
|
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|
May 15, 2020
|
|
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|
| Exchange Transaction | 9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020 | Minimum |
|
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| Debt Instrument [Line Items] |
|
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| Debt instrument interest rate |
9.00%
|
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|
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| Exchange Transaction | 9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020 | Maximum |
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| Debt Instrument [Line Items] |
|
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|
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| Debt instrument paid in kind interest rate |
10.75%
|
|
|
|
|
|
|
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| Exchange Transaction | 8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021 |
|
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| Debt Instrument [Line Items] |
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| Debt instrument aggregate principal amount |
$ 142,000,000
|
|
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| Debt instrument maturity date |
|
|
|
Jun. 15, 2021
|
|
|
|
|
| Exchange Transaction | 8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021 | Minimum |
|
|
|
|
|
|
|
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| Debt Instrument [Line Items] |
|
|
|
|
|
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| Debt instrument interest rate |
8.50%
|
|
|
|
|
|
|
|
| Exchange Transaction | 8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021 | Maximum |
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| Debt Instrument [Line Items] |
|
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|
|
|
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| Debt instrument paid in kind interest rate |
10.00%
|
|
|
|
|
|
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|
| Exchange Transaction | 11.00% 1.5 Lien Term Loan, Due November 2019 |
|
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| Debt Instrument [Line Items] |
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| Debt instrument aggregate principal amount |
$ 75,000,000
|
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| Debt instrument maturity date |
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|
Nov. 15, 2019
|
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| Debt instrument interest rate |
11.00%
|
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| Exchange Transaction | 1.5 Lien Term Loan |
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| Debt Instrument [Line Items] |
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| Interest expense recorded for new debt |
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|
$ 0
|
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