Disclosures About Fair Value of Financial Instruments - Nonrecurring Assets that had Fair Market Values Below the Carrying Amount (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	$ 0	$ 0
Total assets	174,893	1,304,858
Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	0	0
Total assets	1,996,262	2,331,730
Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	9,910,852	9,648,825
Total assets	9,921,324	9,675,565
Fair Value, Measurements, Nonrecurring
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	95	380
Real estate owned, net	413	873
Total assets	15,924	48,221
Fair Value, Measurements, Nonrecurring \| Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	15,416	46,968
Fair Value, Measurements, Nonrecurring \| Level 1
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	0	0
Real estate owned, net	0	0
Total assets	0	0
Fair Value, Measurements, Nonrecurring \| Level 1 \| Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	0	0
Fair Value, Measurements, Nonrecurring \| Level 2
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	0	0
Real estate owned, net	0	0
Total assets	0	0
Fair Value, Measurements, Nonrecurring \| Level 2 \| Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	0	0
Fair Value, Measurements, Nonrecurring \| Level 3
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Mortgage servicing rights	95	380
Real estate owned, net	413	873
Total assets	15,924	48,221
Fair Value, Measurements, Nonrecurring \| Level 3 \| Loans individually assessed
Fair value measurement for nonrecurring assets that had a fair market value below the carrying amount
Loans receivable, net	$ 15,416	$ 46,968

Mortgage Servicing Rights, Fair Value

No definition available.

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI https://asc.fasb.org/subtopic&trid=2196772

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- Definition

Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(4))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

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