Earnings Per Share - Calculations of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator:
Net Income	$ 88,258	$ 107,110	$ 169,769	$ 197,043
Plus: Interest expense on convertible notes, net of tax	1,040	0	2,086	0
Unrealized loss on financial instruments, net of tax	0	0	0	112
Diluted net income	$ 89,298	$ 107,110	$ 171,855	$ 197,155
Denominator:
Basic EPS weighted average shares outstanding	28,243	29,011	28,547	28,752
Effect of dilutive:
Effect of dilutive convertible notes	4,731	608	4,881	304
Effect of dilutive warrants	590	499	600	625
Effect of dilutive restricted stock	115	201	156	219
Diluted EPS weighted average shares outstanding	33,679	30,319	34,184	29,900
Earnings per share:
Basic	$ 3.12	$ 3.69	$ 5.95	$ 6.85
Diluted	$ 2.65	$ 3.53	$ 5.03	$ 6.59