Fair Value Measurements - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 1,107	$ 757	$ 730
Cumulative effect adjustment upon adoption of ASU 2016-13, Credit Losses				$ 575
Provision for credit loss expense	113	46	490	228
Ending balance	$ 1,220	$ 803	$ 1,220	$ 803

Amount of other addition (reduction) in allowance reserve for credit loss.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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- Definition

Amount of credit loss expense (reversal of expense) for financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
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