Loans Receivable, Net - Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended
Mar. 31, 2021 USD ($) Loan	Mar. 31, 2020 USD ($) Loan
TDRs that occurred during the period
Number of loans \| Loan	7	5
Pre-modification recorded balance	$ 1,753	$ 7,268
Post-modification recorded balance	$ 1,753	$ 7,268
TDRs that subsequently defaulted
Number of loans \| Loan	0	0
Recorded balance	$ 0	$ 0
Residential real estate
TDRs that occurred during the period
Number of loans \| Loan	1	0
Pre-modification recorded balance	$ 210	$ 0
Post-modification recorded balance	$ 210	$ 0
TDRs that subsequently defaulted
Number of loans \| Loan	0	0
Recorded balance	$ 0	$ 0
Commercial real estate
TDRs that occurred during the period
Number of loans \| Loan	4	3
Pre-modification recorded balance	$ 1,374	$ 6,857
Post-modification recorded balance	$ 1,374	$ 6,857
TDRs that subsequently defaulted
Number of loans \| Loan	0	0
Recorded balance	$ 0	$ 0
Other commercial
TDRs that occurred during the period
Number of loans \| Loan	1	2
Pre-modification recorded balance	$ 38	$ 411
Post-modification recorded balance	$ 38	$ 411
TDRs that subsequently defaulted
Number of loans \| Loan	0	0
Recorded balance	$ 0	$ 0
Home equity
TDRs that occurred during the period
Number of loans \| Loan	0	0
Pre-modification recorded balance	$ 0	$ 0
Post-modification recorded balance	$ 0	$ 0
TDRs that subsequently defaulted
Number of loans \| Loan	0	0
Recorded balance	$ 0	$ 0
Other consumer
TDRs that occurred during the period
Number of loans \| Loan	1	0
Pre-modification recorded balance	$ 131	$ 0
Post-modification recorded balance	$ 131	$ 0
TDRs that subsequently defaulted
Number of loans \| Loan	0	0
Recorded balance	$ 0	$ 0

Number of financing receivables that have been modified by troubled debt restructurings.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524

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Amount, after troubled debt restructuring, of modified financing receivable.

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Amount, before troubled debt restructuring, of financing receivable to be modified.

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524

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Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524

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