Commitments and Contingent Liabilities (Tables)

12 Months Ended

Dec. 31, 2020

Commitments And Contingencies Disclosure [Abstract]

Summary of Financial Instruments with Off-Balance-Sheet Risks

The amounts of financial instruments with off-balance-sheet risk are as follows:

	December 31,
	2020		2019
	(Dollars in thousands)
Loan commitments	$	1,779,857	$	1,618,001
Stand-by letters of credit		96,311		64,702