Loans and Allowance for Loan Losses - Schedule of Allowances For Loan Losses and Recorded Investment In Loans (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance at December 31, 2021	$ 443,424	$ 427,597	$ 605,736
Charge-offs	(183,074)	(83,710)	(105,232)
Recoveries	29,732	30,554	27,444
Provision for (reversal of) loan losses	189,303	68,983	(100,351)
Ending balance at December 31, 2022	479,385	443,424	427,597
Commercial & Industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance at December 31, 2021	161,550	188,364	229,555
Charge-offs	(86,320)	(42,588)	(59,457)
Recoveries	16,664	14,625	9,734
Provision for (reversal of) loan losses	127,076	1,149	8,532
Ending balance at December 31, 2022	218,970	161,550	188,364
Commercial Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance at December 31, 2021	143,575	97,760	130,742
Charge-offs	(45,450)	(3,102)	(15,392)
Recoveries	1,273	1,633	7,444
Provision for (reversal of) loan losses	34,360	47,284	(25,034)
Ending balance at December 31, 2022	133,758	143,575	97,760
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance at December 31, 2021	138,299	141,473	245,439
Charge-offs	(51,304)	(38,020)	(30,383)
Recoveries	11,795	14,296	10,266
Provision for (reversal of) loan losses	27,867	20,550	(83,849)
Ending balance at December 31, 2022	$ 126,657	$ 138,299	$ 141,473

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

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- Definition

Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
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-Publisher FASB
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- Definition

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

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