Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 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)	September 30, 2021			December 31, 2020
Commitments to extend credit		$	2,500,541		$	2,185,752
Standby letters of credit		90,250			89,095
Total		$	2,590,791		$	2,274,847

Allowance for Credit Loss for Unfunded Loan Commitments

The following table presents activity in the allowance for credit losses on unfunded loan commitments as of the dates presented:

	Three Months Ended September 30,						Nine Months Ended September 30,
(dollars in thousands)	2021			2020			2021			2020
Balance at beginning of period		$	4,858		$	7,004		$	4,467		$	3,112
Impact of adopting ASU 2016-13 at January 1, 2020		—			—			—			1,349
Balance after adoption of ASU 2016-13		4,858			7,004			4,467			4,461
Provision for credit losses		1,085			(1,816)			1,476			727
Total		$	5,943		$	5,188		$	5,943		$	5,188