Shareholders' Equity and Other Comprehensive Income - OCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Changes in Accumulated Other Comprehensive Income (Loss) by Component [Roll Forward]
Beginning balance	$ 4,475,801
Other comprehensive income (loss) before reclassifications	133,022	$ (1,377,998)	$ (231,951)
Amounts reclassified from AOCI	192,022	18,202	(9,005)
Other comprehensive income (loss)	325,044	(1,359,796)	(240,956)
Ending balance	5,119,993	4,475,801
Accumulated other comprehensive income (loss), net	(1,117,073)	(1,442,117)
AOCI
Changes in Accumulated Other Comprehensive Income (Loss) by Component [Roll Forward]
Beginning balance	(1,442,117)	(82,321)	158,635
Other comprehensive income (loss)	325,044	(1,359,796)	(240,956)
Ending balance	(1,117,073)	(1,442,117)	(82,321)
Net Unrealized Gains (Losses) on Investment Securities Available for Sale
Changes in Accumulated Other Comprehensive Income (Loss) by Component [Roll Forward]
Beginning balance	(1,220,263)	(67,980)	105,669
Other comprehensive income (loss) before reclassifications	163,813	(1,152,283)	(174,246)
Amounts reclassified from AOCI	58,191	0	597
Other comprehensive income (loss)	222,004	(1,152,283)	(173,649)
Ending balance	(998,259)	(1,220,263)	(67,980)
Accumulated other comprehensive income (loss), net	16,400	13,300	13,300	$ 13,300
Net Unrealized Gains (Losses) on Cash Flow Hedges
Changes in Accumulated Other Comprehensive Income (Loss) by Component [Roll Forward]
Beginning balance	(221,854)	(14,341)	52,966
Other comprehensive income (loss) before reclassifications	(30,791)	(225,715)	(57,705)
Amounts reclassified from AOCI	133,831	18,202	(9,602)
Other comprehensive income (loss)	103,040	(207,513)	(67,307)
Ending balance	(118,814)	(221,854)	(14,341)
Accumulated other comprehensive income (loss), net	$ 12,700	$ 12,100	$ 12,100	$ 12,100