Condensed Consolidated Statements of Comprehensive Income (Unuaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 90,048	$ 181,222
Available for sale securities:
Change in net unrealized gains	20	155
Less: reclassification adjustment for net gains included in net income	0	(13)
Net change (net of tax effect)	20	142
Gain on pension liability	1,050	8
Cash flow hedges:
Change in unrealized losses	(863)	(2,585)
Less: reclassification adjustment for net gains included in net income	(1,943)	(248)
Net change (net of tax effect)	(2,806)	(2,833)
Other comprehensive loss	(1,736)	(2,683)
Comprehensive income	$ 88,312	$ 178,539