Fair Value of Assets and Liabilities - Carrying Value and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025
Assets:
Cash and cash equivalents	$ 54,992	$ 68,995	$ 67,861
Carrying Value
Assets:
Cash and cash equivalents	54,992	68,995
Restricted cash	106,389	54,640
Liabilities:
Borrowings under exchange and senior credit facility	248,941	358,583
Fair Value
Assets:
Cash and cash equivalents	54,992	68,995
Restricted cash	106,389	54,640
Liabilities:
Borrowings under exchange and senior credit facility	248,941	358,583
Level 1 \| Fair Value
Assets:
Cash and cash equivalents	54,992	68,995
Restricted cash	106,389	54,640
Level 2 \| Fair Value
Liabilities:
Borrowings under exchange and senior credit facility	248,941	358,583
8.625% Senior Secured Notes Due 2029 \| Carrying Value
Liabilities:
Senior notes, fair value	650,000	650,000
8.625% Senior Secured Notes Due 2029 \| Fair Value
Liabilities:
Senior notes, fair value	677,469	684,437
8.625% Senior Secured Notes Due 2029 \| Level 2 \| Fair Value
Liabilities:
Senior notes, fair value	677,469	684,437
10.250% Senior Notes due 2031 \| Carrying Value
Liabilities:
Senior notes, fair value	625,000	625,000
10.250% Senior Notes due 2031 \| Fair Value
Liabilities:
Senior notes, fair value	676,163	685,375
10.250% Senior Notes due 2031 \| Level 2 \| Fair Value
Liabilities:
Senior notes, fair value	$ 676,163	$ 685,375