Loans and Leases Allowance for Loan and Leases Held for Investment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Allowance for Loan and Lease Losses [Roll Forward]
Loans and Leases Receivable, Allowance, beginning balance	$ 200,732	$ 200,564
Allowance for Loan and Lease Losses, Write-offs	(63,428)	(14,037)
Allowance for Loan and Lease Loss, Recovery of Bad Debts	5,260	9,205
Allowance for Loan and Lease Losses Write-offs, Net	(58,168)	4,832
Provision for Loan and Lease Losses	113,500	(5,000)
Loans and Leases Receivable, Allowance, ending balance	281,687	200,732
Initial Allowance on Acquired PCD Loans	25,623
Financing Receivable, Individually Evaluated for Impairment	0	3,300
Financing Receivable, Collectively Evaluated for Impairment	281,687	197,432
Financing Receivable, Individually Evaluated for Impairment	59,380	100,444
Financing Receivable, Collectively Evaluated for Impairment	25,430,307	28,508,685
Loans held for investment, net	25,489,687	28,609,129
Previously Reported
Allowance for Loan and Lease Losses [Roll Forward]
Loans and Leases Receivable, Allowance, beginning balance	200,732
Loans and Leases Receivable, Allowance, ending balance		200,732
Mortgages [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Loans and Leases Receivable, Allowance, beginning balance		98,624
Allowance for Loan and Lease Losses, Write-offs	(47,370)	(5,056)
Allowance for Loan and Lease Loss, Recovery of Bad Debts	885	1,748
Allowance for Loan and Lease Losses Write-offs, Net	46,485	3,308
Provision for Loan and Lease Losses	124,035	8,007
Loans and Leases Receivable, Allowance, ending balance	186,827
Initial Allowance on Acquired PCD Loans	21,968
Financing Receivable, Individually Evaluated for Impairment	0	3,053
Financing Receivable, Collectively Evaluated for Impairment	186,827	84,256
Financing Receivable, Individually Evaluated for Impairment	47,007	94,620
Financing Receivable, Collectively Evaluated for Impairment	16,064,978	15,635,704
Loans held for investment, net	16,111,985	15,730,324
Mortgages [Member] | Previously Reported
Allowance for Loan and Lease Losses [Roll Forward]
Loans and Leases Receivable, Allowance, beginning balance	87,309
Loans and Leases Receivable, Allowance, ending balance		87,309
Real Estate Construction [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Loans and Leases Receivable, Allowance, beginning balance		44,508
Allowance for Loan and Lease Losses, Write-offs	0	0
Allowance for Loan and Lease Loss, Recovery of Bad Debts	0	178
Allowance for Loan and Lease Losses Write-offs, Net	0	(178)
Provision for Loan and Lease Losses	(18,818)	(7,634)
Loans and Leases Receivable, Allowance, ending balance	33,830
Initial Allowance on Acquired PCD Loans	328
Financing Receivable, Individually Evaluated for Impairment	0	0
Financing Receivable, Collectively Evaluated for Impairment	33,830	52,320
Financing Receivable, Individually Evaluated for Impairment	0	1,402
Financing Receivable, Collectively Evaluated for Impairment	3,159,269	4,150,770
Loans held for investment, net	3,159,269	4,152,172
Real Estate Construction [Member] | Previously Reported
Allowance for Loan and Lease Losses [Roll Forward]
Loans and Leases Receivable, Allowance, beginning balance	52,320
Loans and Leases Receivable, Allowance, ending balance		52,320
Commercial Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Loans and Leases Receivable, Allowance, beginning balance		48,718
Allowance for Loan and Lease Losses, Write-offs	(13,661)	(6,817)
Allowance for Loan and Lease Loss, Recovery of Bad Debts	4,125	7,163
Allowance for Loan and Lease Losses Write-offs, Net	9,536	(346)
Provision for Loan and Lease Losses	(1,350)	(3,785)
Loans and Leases Receivable, Allowance, ending balance	45,156
Initial Allowance on Acquired PCD Loans	3,193
Financing Receivable, Individually Evaluated for Impairment	0	247
Financing Receivable, Collectively Evaluated for Impairment	45,156	52,602
Financing Receivable, Individually Evaluated for Impairment	12,373	4,422
Financing Receivable, Collectively Evaluated for Impairment	5,752,934	8,277,540
Loans held for investment, net	5,765,307	8,281,962
Commercial Portfolio Segment [Member] | Previously Reported
Allowance for Loan and Lease Losses [Roll Forward]
Loans and Leases Receivable, Allowance, beginning balance	52,849
Loans and Leases Receivable, Allowance, ending balance		52,849
Consumer Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Loans and Leases Receivable, Allowance, beginning balance		8,714
Allowance for Loan and Lease Losses, Write-offs	(2,397)	(2,164)
Allowance for Loan and Lease Loss, Recovery of Bad Debts	250	116
Allowance for Loan and Lease Losses Write-offs, Net	2,147	2,048
Provision for Loan and Lease Losses	(9,633)	(1,588)
Loans and Leases Receivable, Allowance, ending balance	15,874
Initial Allowance on Acquired PCD Loans	134
Financing Receivable, Individually Evaluated for Impairment	0	0
Financing Receivable, Collectively Evaluated for Impairment	15,874	8,254
Financing Receivable, Individually Evaluated for Impairment	0	0
Financing Receivable, Collectively Evaluated for Impairment	453,126	444,671
Loans held for investment, net	453,126	444,671
Consumer Portfolio Segment [Member] | Previously Reported
Allowance for Loan and Lease Losses [Roll Forward]
Loans and Leases Receivable, Allowance, beginning balance	$ 8,254
Loans and Leases Receivable, Allowance, ending balance		$ 8,254