Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Carrying Value and Fair Value of Long-term Debt (Details)

v3.21.2
Fair Value Measurements - Carrying Value and Fair Value of Long-term Debt (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Long-term debt, carrying value $ 754,687 $ 625,286
Long-term debt, fair value 751,267 473,352
Term Loan [Member]    
Long-term debt, carrying value 208,282  
Long-term debt, fair value 214,607  
Credit Agreement [Member]    
Long-term debt, carrying value   80,000
Long-term debt, fair value   80,000
Senior Second Lien Notes Due November 2023 [Member]    
Long-term debt, carrying value 546,405 545,286
Long-term debt, fair value $ 536,660 $ 393,352