Loans and Allowance for Credit Losses - Provision for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Receivables [Abstract]
Loans	$ (10,011)	$ 26,678	$ (10,011)	$ 52,875
Unfunded commitments	0	(5,001)	0	(8,000)
Securities - HTM	(486)	(102)	(1,183)	(62)
Securities - AFS	(2,454)	340	(312)	236
Total	$ (12,951)	$ 21,915	$ (11,506)	$ 45,049

Provision for Unfunded Commitments

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- Definition

Amount of expense (reversal of expense) for expected credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), from change in present value of expected cash flows.

+ References

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-Publisher FASB
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-SubTopic 30
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- Definition

Amount of expense (reversal of expense) for expected credit loss on investment in debt security measured at amortized cost (held-to-maturity).

+ References

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- Definition

Amount of expense related to estimated loss from loan and lease transactions.

+ References

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

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