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Commitments and Contingencies (Tables)
3 Months Ended
Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Commitments and Letters of Credit
The following table sets forth our commitments and letters of credit as of the dates presented:
(dollars in thousands)March 31, 2021December 31, 2020
Commitments to extend credit$2,261,223 $2,185,752 
Standby letters of credit88,418 89,095 
Total$2,349,641 $2,274,847 
Unfunded Loan Commitments, Allowance For Credit Loss
The following table presents activity in the allowance for credit losses on unfunded loan commitments as of the dates presented:
(dollars in thousands)Three Months Ended March 31, 2021Three Months Ended March 31, 2020
Balance at beginning of period$4,467 $3,112 
Impact of adopting ASU 2016-13 at January 1, 2020— 1,349 
Balance after adoption of ASU 2016-134,467 4,461 
(Recovery) provision for credit losses(164)1,616 
Total$4,303 $6,077