Loans Receivable and Allowance for Credit Losses - Loans Modified as TDRs that Subsequently Defaulted (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022 USD ($) loan	Sep. 30, 2021 USD ($) loan	Sep. 30, 2022 USD ($) loan	Sep. 30, 2021 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	0	3	1
Recorded Investment \| $	$ 0	$ 0	$ 14,909	$ 11,431
Commercial lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	0	3	1
Recorded Investment \| $	$ 0	$ 0	$ 14,909	$ 11,431
Commercial lending \| Commercial and industrial (“C&I”)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	0	2	1
Recorded Investment \| $	$ 0	$ 0	$ 13,901	$ 11,431
Commercial lending \| Real estate loan \| Multifamily residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0		1
Recorded Investment \| $	$ 0		$ 1,008
Commercial lending \| Real estate loan \| Non-PCI Loans \| Multifamily residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan		0		0
Recorded Investment \| $		$ 0		$ 0
Commercial lending \| Total CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0		1
Recorded Investment \| $	$ 0		$ 1,008
Commercial lending \| Total CRE \| Non-PCI Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan		0		0
Recorded Investment \| $		$ 0		$ 0

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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- Definition

Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524

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