Accumulated Other Comprehensive Income - Summary of Changes in Accumulated Balances of AOCI Including Current Period Other Comprehensive Income (Loss) and Reclassifications Out of AOCI (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022		Jun. 30, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 4,391,315	$ 4,162,010	$ 4,270,740	[1],[2]	$ 4,106,002	[2]
Other comprehensive income (loss) before      reclassifications	22,635	(8,450)	9,136		9,498
Less: gain (loss) reclassified from AOCI	4,127	(2,334)	8,320		(5,086)
Tax effect	841	173	3,224		616
Net current-period other comprehensive income (loss)	19,349	(5,943)	4,040		15,200
Ending balance	4,504,807	4,241,571	4,504,807		4,241,571
Unrealized Gains (Losses) on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	8,387	2,617	15,805		(20,028)
Other comprehensive income (loss) before      reclassifications	26,255	(7,711)	23,030		12,182
Less: gain (loss) reclassified from AOCI	4,127	(2,334)	8,320		(5,086)
Tax effect	0	0	0		0
Net current-period other comprehensive income (loss)	22,128	(5,377)	14,710		17,268
Ending balance	30,515	(2,760)	30,515		(2,760)
Unrealized Gains (Losses) on Available for-Sale Debt Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(9,264)	2,387	(1,373)		3,889
Other comprehensive income (loss) before      reclassifications	(3,620)	(739)	(13,894)		(2,684)
Less: gain (loss) reclassified from AOCI	0	0	0		0
Tax effect	841	173	3,224		616
Net current-period other comprehensive income (loss)	(2,779)	(566)	(10,670)		(2,068)
Ending balance	(12,043)	1,821	(12,043)		1,821
AOCI attributable to parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(877)	5,004	14,432	[2]	(16,139)	[2]
Ending balance	$ 18,472	$ (939)	$ 18,472		$ (939)

[1] (1)December 31, 2021 balances were derived from the audited Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021, filed with the SEC on February 25, 2022.

[2] The beginning balances for the six-month periods were derived from the audited Consolidated Financial Statements included in Company’s Annual Report on Form 10-K for the year ended December 31, 2021, filed with the SEC on February 25, 2022.