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Loans and Leases Receivable and Allowance for Credit Losses on Loans and Leases - Summary of Amortized Cost of Loans and Leases on Nonaccrual Status (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	$ 34,976	$ 41,508
Nonaccrual loans with related allowance	8,295	7,605
Total nonaccrual loans	43,271	49,113
Multi-family
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	17,869	22,654
Nonaccrual loans with related allowance	0	0
Total nonaccrual loans	17,869	22,654
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	5,490	5,837
Nonaccrual loans with related allowance	0	259
Total nonaccrual loans	5,490	6,096
Commercial real estate owner occupied
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	2,191	2,475
Nonaccrual loans with related allowance	0	0
Total nonaccrual loans	2,191	2,475
Commercial real estate non-owner occupied
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	1,302	2,815
Nonaccrual loans with related allowance	0	0
Total nonaccrual loans	1,302	2,815
Residential real estate
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	8,124	7,727
Nonaccrual loans with related allowance	0	0
Total nonaccrual loans	8,124	7,727
Manufactured housing
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	0	0
Nonaccrual loans with related allowance	3,430	3,563
Total nonaccrual loans	3,430	3,563
Installment
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	0	0
Nonaccrual loans with related allowance	4,865	3,783
Total nonaccrual loans	$ 4,865	$ 3,783

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Topic 326
-SubTopic 20
-Section 50
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