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Financial Instruments with Off-Balance-Sheet Risk (Tables)
12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Financial Instruments Outstanding Contract Amounts Represent Credit Risk
As of December 31, 2021 and 2020, the following off-balance sheet commitments, financial instruments and other arrangements were outstanding:
December 31,
(amounts in thousands)20212020
Commitments to fund loans and leases$321,473 $262,153 
Unfunded commitments to fund mortgage warehouse loans2,732,258 1,933,067 
Unfunded commitments under lines of credit and credit cards1,535,573 1,009,031 
Letters of credit25,646 27,166 
Other unused commitments875 1,842