W&T Offshore, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation (Policies)
Notes Tables
Notes Details

Long-Term Debt - Additional Information (Details)

v2.4.1.9

Long-Term Debt - Additional Information (Details) (USD $)	3 Months Ended	0 Months Ended
	Mar. 31, 2015	Apr. 23, 2015	Dec. 31, 2014	Mar. 31, 2014	Apr. 30, 2015
Debt Instrument [Line Items]
Senior notes interest rate	8.50%
8.50% Senior Notes
Debt Instrument [Line Items]
Senior notes interest rate	8.50%		8.50%
Senior notes payment terms	semi-annually in arrears on June 15 and December 15
Effective interest rate	8.40%			8.40%
Senior notes maturity date	Jun. 15, 2019
Revolving Bank Credit Facility Due November 2018
Debt Instrument [Line Items]
Effective interest rate	3.20%
Credit agreement expiration date	Nov. 08, 2018
Letters of credit outstanding	600,000		600,000
Revolving bank credit facility maximum lender commitment	750,000,000
Line of credit, borrowing availability	235,400,000
Revolving Bank Credit Facility Due November 2018 \| Subsequent Event
Debt Instrument [Line Items]
Credit agreement expiration date		Nov. 08, 2018
Revolving bank credit facility borrowing base		$ 600,000,000			$ 600,000,000

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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- Definition

Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (c)

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-Topic 210

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-Section S99

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-Subparagraph (SX 210.5-02.22(a)(3))

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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