Nature of Operations and Summary of Significant Accounting Policies - Net Income Per Share and Fair Value (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) segment $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares
Net income per common share:
Number of outstanding units not included in computation of Diluted EPS (in shares)	301,000	859,000	78,000
Numerator:
Net income | $	$ 34,342	$ 72,953	$ 111,910
Denominator:
Basic earnings per share weighted average shares (in shares)	43,940,000	50,548,000	50,348,000
Dilution due to employee equity awards and warrants (in shares)	659,000	96,000	405,000
Diluted earnings per share weighted average shares	44,599,000	50,644,000	50,753,000
Basic earnings per share (in dollars per share) | $ / shares	$ 0.78	$ 1.44	$ 2.22
Diluted earnings per share (in dollars per share) | $ / shares	$ 0.77	$ 1.44	$ 2.20
Fair Value of Financial Instruments
Total long-term debt | $	$ 3,030,310	$ 3,409,311
Segment Reporting
Number of reporting segments | segment	2
Performance Share Units (PSUs)
Net income per common share:
Number of outstanding units not included in computation of Diluted EPS (in shares)	334,000	146,000	140,000
Warrants PSP1
Net income per common share:
Number of outstanding units not included in computation of Diluted EPS (in shares)	286,000	640,000	78,000
Employee Stock Option [Member]
Net income per common share:
Number of outstanding units not included in computation of Diluted EPS (in shares)	15,000	219,000