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Loans and Leases Receivable and Allowance for Credit Losses - Summary of Amortized Cost of Loans and Leases on Nonaccrual Status (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	$ 33,939	$ 13,084
Nonaccrual loans with related allowance	9,941	6,937
Total nonaccrual loans	43,880	20,021
Multi-family
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	8,749	4,117
Nonaccrual loans with related allowance	2,961	0
Total nonaccrual loans	11,710	4,117
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	8,749	3,083
Nonaccrual loans with related allowance	884	1,448
Total nonaccrual loans	9,633	4,531
Commercial real estate owner occupied
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	3,399	1,109
Nonaccrual loans with related allowance	200	854
Total nonaccrual loans	3,599	1,963
Commercial real estate non-owner occupied
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	2,408	76
Nonaccrual loans with related allowance	0	0
Total nonaccrual loans	2,408	76
Residential real estate
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	10,634	4,559
Nonaccrual loans with related allowance	0	1,569
Total nonaccrual loans	10,634	6,128
Manufactured housing
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	0	0
Nonaccrual loans with related allowance	2,778	1,655
Total nonaccrual loans	2,778	1,655
Installment
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance	0	140
Nonaccrual loans with related allowance	3,118	1,411
Total nonaccrual loans	$ 3,118	$ 1,551

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Amount of financing receivable on nonaccrual status with no allowance for credit loss.

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