CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 205,095	$ 134,258	$ (19,425)
Other comprehensive income (loss), net of tax:
Change in unrealized gains on available-for-sale securities, net	1,986	234	929
Change in unrealized gains (losses) on derivative contracts, net (net of tax effect of $79, ($171) and $105)	2,955
Change in unrealized gains (losses) on derivative contracts, net (net of tax effect of $79, ($171) and $105)	2,955	(2,903)	1,617
Other comprehensive income (loss)	4,941	(2,669)	2,546
Total comprehensive income (loss), net of tax	$ 210,036	$ 131,589	$ (16,879)