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, 2022	Dec. 31, 2021	Dec. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 427,597	$ 605,736	$ 281,402
Charge-offs	(83,710)	(105,232)	(119,262)
Recoveries	30,554	27,444	24,550
Provision for (reversal of) loan losses	68,983	(100,351)	336,052
Ending balance	443,424	427,597	605,736
Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		82,994
Ending balance			82,994
Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		364,396
Ending balance			364,396
Commercial And Industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	188,364	229,555	145,782
Charge-offs	(42,588)	(59,457)	(76,260)
Recoveries	14,625	9,734	13,544
Provision for (reversal of) loan losses	1,149	8,532	148,799
Ending balance	161,550	188,364	229,555
Commercial And Industrial \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		(2,310)
Ending balance			(2,310)
Commercial And Industrial \| Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		143,472
Ending balance			143,472
Commercial Real Estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	97,760	130,742	67,430
Charge-offs	(3,102)	(15,392)	(13,213)
Recoveries	1,633	7,444	2,857
Provision for (reversal of) loan losses	47,284	(25,034)	74,319
Ending balance	143,575	97,760	130,742
Commercial Real Estate \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		(651)
Ending balance			(651)
Commercial Real Estate \| Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		66,779
Ending balance			66,779
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	141,473	245,439	68,190
Charge-offs	(38,020)	(30,383)	(29,789)
Recoveries	14,296	10,266	8,149
Provision for (reversal of) loan losses	20,550	(83,849)	112,934
Ending balance	$ 138,299	141,473	245,439
Consumer \| Cumulative Effect, Period of Adoption, Adjustment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		85,955
Ending balance			85,955
Consumer \| Cumulative Effect, Period of Adoption, Adjusted Balance
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		$ 154,145
Ending balance			$ 154,145

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

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