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Fair Value of Financial Instruments - Quantative Information About Unobservable Inputs (Details) - USD ($) $ in Thousands	6 Months Ended	9 Months Ended
	Jun. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Impaired loans		$ 3,748	$ 6,009
Servicing asset		4,412	3,569
Quoted Prices in Active Markets for Identical Assets (Level 1)
Servicing asset		0	0
Significant Other Observable Inputs (Level 2)
Servicing asset		0	0
Significant Unobservable Inputs (Level 3)
Servicing asset		4,412	3,569
IRLCs | Significant Unobservable Inputs (Level 3)
IRLCs Fair Value		840	3,361
Servicing asset | Significant Unobservable Inputs (Level 3)
Servicing asset		4,412	3,569
Impaired Loans | Significant Unobservable Inputs (Level 3)
Impaired loans		$ 3,747	$ 4,026
Loan closing rates | Discounted cash flow | IRLCs | Significant Unobservable Inputs (Level 3) | Minimum
IRLC - Loan closing rates	44.00%	51.00%
Loan closing rates | Discounted cash flow | IRLCs | Significant Unobservable Inputs (Level 3) | Maximum
IRLC - Loan closing rates	100.00%	100.00%
Loan closing rates | Discounted cash flow | IRLCs | Significant Unobservable Inputs (Level 3) | Weighted-Average Range
IRLC - Loan closing rates	87.00%	90.00%
Measurement Input, Prepayment Rate [Member] | Discounted cash flow | Servicing asset | Significant Unobservable Inputs (Level 3) | Minimum
Servicing asset, discount rate	0.00%	0.00%
Measurement Input, Prepayment Rate [Member] | Discounted cash flow | Servicing asset | Significant Unobservable Inputs (Level 3) | Maximum
Servicing asset, discount rate	25.00%	25.00%
Measurement Input, Prepayment Rate [Member] | Discounted cash flow | Servicing asset | Significant Unobservable Inputs (Level 3) | Weighted-Average Range
Servicing asset, discount rate	12.10%	12.80%
Measurement Input, Discount Rate | Discounted cash flow | Servicing asset | Significant Unobservable Inputs (Level 3)
Servicing asset, discount rate	10.00%	10.00%
Measurement Input, Discount Rate | Discounted cash flow | Servicing asset | Significant Unobservable Inputs (Level 3) | Weighted-Average Range
Servicing asset, discount rate	10.00%	10.00%
Discount for type of property and current market conditions | Fair value of collateral | Impaired Loans | Significant Unobservable Inputs (Level 3)
Impaired Financing Receivable, Measurement Input		10.00%	10.00%
Discount for type of property and current market conditions | Fair value of collateral | Impaired Loans | Significant Unobservable Inputs (Level 3) | Weighted-Average Range
Impaired Financing Receivable, Measurement Input		10.00%	10.00%

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- Definition

Fair value portion of derivative financial instrument.

+ References

No definition available.

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- Definition

Impaired Financing Receivable, Measurement Input

+ References

No definition available.

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- Definition

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+ References

No definition available.

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- Definition

Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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- Definition

Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
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- Definition

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