Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income	$ 304,107	$ 203,711
Other comprehensive income, net of tax:
Change in value of derivatives	25	25
Other comprehensive income	25	25
Comprehensive income	$ 304,132	$ 203,736