Loans - Loans (Detail) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans receivable	$ 5,800,991	$ 5,151,541
Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans receivable	4,503,534	4,102,411
Real Estate \| Home Equity Loans and Lines - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans receivable	2,400	3,900
Real Estate \| Personal Loans - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans receivable	$ 5,600	$ 6,000

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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+ Details