Loans and Lease Finance Receivables and Allowance for Credit Losses - Summary of Loans Modified as Troubled Debt Restructurings (Detail) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2021 USD ($) Agreement	Jun. 30, 2022 USD ($) Agreement	Jun. 30, 2021 USD ($) Agreement
Financing Receivable, Allowance for Credit Loss [Line Items]
Troubled debt restructurings, Number of Loans | Agreement	1	0	3
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment	$ 2,453	$ 0	$ 7,096
Financing Receivable, Troubled Debt Restructuring, Postmodification	2,453	0	7,096
Troubled debt restructurings, Outstanding Recorded Investment	2,450	0	6,893
Troubled debt restructurings, Financial Effect Resulting From Modifications	$ 0	$ 0	$ 0
Contractual Interest Rate Reduction [Member] | Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Troubled debt restructurings, Number of Loans | Agreement		0
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment		$ 0
Financing Receivable, Troubled Debt Restructuring, Postmodification		0
Troubled debt restructurings, Outstanding Recorded Investment		0
Troubled debt restructurings, Financial Effect Resulting From Modifications	$ 0	$ 0	$ 0
Contractual Interest Rate Reduction [Member] | Commercial and Industrial Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Troubled debt restructurings, Number of Loans | Agreement		0
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment		$ 0
Financing Receivable, Troubled Debt Restructuring, Postmodification		0
Troubled debt restructurings, Outstanding Recorded Investment		0
Troubled debt restructurings, Financial Effect Resulting From Modifications	$ 0	$ 0	$ 0
Contractual Interest Rate Reduction [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Troubled debt restructurings, Number of Loans | Agreement	1	0	1
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment	$ 2,453	$ 0	$ 2,453
Financing Receivable, Troubled Debt Restructuring, Postmodification	2,453	0	2,453
Troubled debt restructurings, Outstanding Recorded Investment	2,450	0	2,450
Troubled debt restructurings, Financial Effect Resulting From Modifications	$ 0	$ 0	$ 0
Change in Amortization Period [Member] | Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Troubled debt restructurings, Number of Loans | Agreement		0
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment		$ 0
Financing Receivable, Troubled Debt Restructuring, Postmodification		0
Troubled debt restructurings, Outstanding Recorded Investment		0
Troubled debt restructurings, Financial Effect Resulting From Modifications	$ 0	$ 0	$ 0
Change in Amortization Period [Member] | Commercial and Industrial Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Troubled debt restructurings, Number of Loans | Agreement		0	2
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment		$ 0	$ 4,643
Financing Receivable, Troubled Debt Restructuring, Postmodification		0	4,643
Troubled debt restructurings, Outstanding Recorded Investment		0	4,443
Troubled debt restructurings, Financial Effect Resulting From Modifications	$ 0	$ 0	$ 0
Change in Amortization Period [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Troubled debt restructurings, Number of Loans | Agreement		0
Troubled debt restructurings, Pre-Modification Outstanding Recorded Investment		$ 0
Financing Receivable, Troubled Debt Restructuring, Postmodification		0
Troubled debt restructurings, Outstanding Recorded Investment		0
Troubled debt restructurings, Financial Effect Resulting From Modifications	$ 0	$ 0	$ 0