Accumulated Other Comprehensive Income (Loss) - Schedule Of The Changes In Components Of Accumulated Other Comprehensive Income (Loss) Balances (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 7,023,232	$ 6,309,331	$ 6,950,834	$ 5,984,612
Other comprehensive income (loss)	8,560	(101,938)	(33,577)	(16,303)
Ending balance	7,215,114	6,461,697	7,215,114	6,461,697
Debt Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(601,510)	(640,734)	(601,881)	(694,815)
Net unrealized gains (losses) arising during the period	8,773	(43,618)	6,491	657
Amounts reclassified from AOCI	1,451	2,816	4,104	12,622
Other comprehensive income (loss)	10,224	(40,802)	10,595	13,279
Ending balance	(591,286)	(681,536)	(591,286)	(681,536)
Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(43,706)	(20,918)	2,624	(49,531)
Net unrealized gains (losses) arising during the period	(17,678)	(68,207)	(81,340)	(47,121)
Amounts reclassified from AOCI	17,325	14,320	34,657	21,847
Other comprehensive income (loss)	(353)	(53,887)	(46,683)	(25,274)
Ending balance	(44,059)	(74,805)	(44,059)	(74,805)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(17,517)	(18,342)	(21,339)	(21,283)
Net unrealized gains (losses) arising during the period	(1,311)	(7,249)	2,511	(4,308)
Amounts reclassified from AOCI	0	0	0	0
Other comprehensive income (loss)	(1,311)	(7,249)	2,511	(4,308)
Ending balance	(18,828)	(25,591)	(18,828)	(25,591)
AOCI, Net of Tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(662,733)	(679,994)	(620,596)	(765,629)
Net unrealized gains (losses) arising during the period	(10,216)	(119,074)	(72,338)	(50,772)
Amounts reclassified from AOCI	18,776	17,136	38,761	34,469
Other comprehensive income (loss)	8,560	(101,938)	(33,577)	(16,303)
Ending balance	$ (654,173)	$ (781,932)	$ (654,173)	$ (781,932)