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Commitments and Contingencies (Tables)
3 Months Ended
Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Commitments
Commitments at March 31, 2021 and December 31, 2020 are summarized as follows:
March 31, 2021December 31, 2020
(Dollars in thousands)
Commitments to extend credit$2,477,778 $2,137,178 
Standby letters of credit134,030 108,834 
Other letters of credit36,495 40,508 
Commitments to fund investments in affordable housing partnerships13,354 15,148