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Fair Value Measurements, Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Assets and Liabilities Measured at Fair Value on a Non-recurring Basis |  |  |
Mortgage servicing rights | $ 66,980 |  | $ 58,384
Mortgage Servicing Rights (MSR) Impairment (Recovery) | (607) | $ 275 |
Fair Value, Inputs, Level 2 |  |  |
Assets and Liabilities Measured at Fair Value on a Non-recurring Basis |  |  |
Residential Held-for-sale, Fair Value Disclosure | 143,022 |  | 85,544
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 |  |  |
Assets and Liabilities Measured at Fair Value on a Non-recurring Basis |  |  |
Other Real Estate Owned Fair Value Disclosure | 1,954 |  | 2,604
Foreclosure / OREO expense, net | (808) |  | (939)
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 |  |  |
Assets and Liabilities Measured at Fair Value on a Non-recurring Basis |  |  |
Impaired loans | 52,972 |  | 92,534
Provision for Credit Losses, Impaired Loans | 12,431 |  | 32,159
Mortgage servicing rights | 84,585 |  | 64,387
Mortgage Servicing Rights (MSR) Impairment (Recovery) | $ 607 |  | $ (175)

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- Definition Other real estate owned fair value disclosure. + References No definition available. + Details
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- Definition Provision for Credit Losses, Impaired Loans + References No definition available. + Details
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- Definition Net amortized carrying amount (balance) as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs and allowances related to servicing arrangements. + References No definition available. + Details
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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 http://asc.fasb.org/subtopic&trid=2196772 + Details
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- Definition The adjustment to the carrying value of the rights retained or purchased to service mortgages. These adjustments are made when the estimate of the fair value is changed. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122739-111746 + Details
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- Definition Fair value portion of mortgage loans held-for-sale. + References No definition available. + Details
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- Definition Amount of write-down or reserve recognized in the income statement on real estate investments for entities with a substantial portion of business acquiring and holding investment real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Footnote 5)) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 + Details
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