Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2022

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following tables present assets and liabilities measured at fair value on a recurring basis at the dates indicated (in thousands):

	December 31, 2022
	Level 1		Level 2		Total
Investment securities available for sale:
U.S. Treasury securities	$	135,841	$	—	$	135,841
U.S. Government agency and sponsored enterprise residential MBS	—		1,983,168		1,983,168
U.S. Government agency and sponsored enterprise commercial MBS	—		525,094		525,094
Private label residential MBS and CMOs	—		2,530,663		2,530,663
Private label commercial MBS	—		2,524,354		2,524,354
Single family real estate-backed securities	—		470,441		470,441
Collateralized loan obligations	—		1,136,463		1,136,463
Non-mortgage asset-backed securities	—		95,976		95,976
State and municipal obligations	—		116,661		116,661
SBA securities	—		135,782		135,782
Marketable equity securities	90,884		—		90,884
Derivative assets	—		88,739		88,739
Total assets at fair value	$	226,725	$	9,607,341	$	9,834,066
Derivative liabilities	$	—	$	(126,220)	$	(126,220)
Total liabilities at fair value	$	—	$	(126,220)	$	(126,220)

	December 31, 2021
	Level 1		Level 2		Total
Investment securities available for sale:
U.S. Treasury securities	$	111,660	$	—	$	111,660
U.S. Government agency and sponsored enterprise residential MBS	—		2,097,796		2,097,796
U.S. Government agency and sponsored enterprise commercial MBS	—		856,899		856,899
Private label residential MBS and CMOs	—		2,149,420		2,149,420
Private label commercial MBS	—		2,604,010		2,604,010
Single family real estate-backed securities	—		476,968		476,968
Collateralized loan obligations	—		1,078,286		1,078,286
Non-mortgage asset-backed securities	—		152,510		152,510
State and municipal obligations	—		222,277		222,277
SBA securities	—		183,595		183,595
Marketable equity securities	120,777		—		120,777
Servicing rights	—		5,152		5,152
Derivative assets	—		59,019		59,019
Total assets at fair value	$	232,437	$	9,885,932	$	10,118,369
Derivative liabilities	$	—	$	(25,314)	$	(25,314)
Total liabilities at fair value	$	—	$	(25,314)	$	(25,314)

Schedule of Assets for Which Nonrecurring Changes in Fair Value have been Recorded

The following table presents the net carrying value of assets classified within level 3 of the fair value hierarchy at the dates indicated, for which non-recurring changes in fair value were recorded during the period then ended (in thousands):

	December 31, 2022		December 31, 2021
Collateral dependent loans	$	31,789	$	70,433
OREO	693		2,788
Operating lease equipment	—		11,429
	$	32,482	$	84,650

Schedule of the Carrying Value and Fair Value of Financial Instruments

The following table presents the carrying value and fair value of financial instruments and the level within the fair value hierarchy in which those measurements are classified at the dates indicated (dollars in thousands):

		December 31, 2022				December 31, 2021
	Level	Carrying Value		Fair Value		Carrying Value		Fair Value
Assets:
Cash and cash equivalents	1	$	572,647	$	572,647	$	314,857	$	314,857
Investment securities	1/2	$	9,755,327	$	9,755,190	$	10,064,198	$	10,064,887
Non-marketable equity securities	2	$	294,172	$	294,172	$	135,859	$	135,859
Loans, net	3	$	24,738,042	$	23,342,950	$	23,638,596	$	24,088,190
Derivative assets	2	$	88,739	$	88,739	$	59,019	$	59,019
Liabilities:
Demand, savings and money market deposits	2	$	23,241,256	$	23,241,256	$	26,053,859	$	26,053,859
Time deposits	2	$	4,268,078	$	4,231,167	$	3,384,243	$	3,388,435
Federal funds purchased	2	$	190,000	$	190,000	$	199,000	$	199,000
FHLB advances	2	$	5,420,000	$	5,419,588	$	1,905,000	$	1,905,629
Notes and other borrowings	2	$	720,923	$	698,359	$	721,416	$	813,095
Derivative liabilities	2	$	126,220	$	126,220	$	25,314	$	25,314