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Fair Value - Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments and Nonfinancial Assets Measured at Fair Value on a Recurring or Non-recurring basis or Disclosed, but not Carried, at Fair Value (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | --- | --- | ---
Financial assets: |  |  |  |  |  |  |  |
Loans held for sale, at fair value |  | $ 284,632 | [1] | $ 309,054 | [1] | $ 401,120 | [1] | $ 503,753
Total Loans held for sale |  | 314,006 |  | 414,046 |  |  |  |
Mortgage-backed securities, at fair value |  | 8,342 |  | 7,985 |  |  |  |
Financial liabilities: |  |  |  |  |  |  |  |
Match funded liabilities |  | 1,280,997 |  | 1,584,049 |  |  |  |
Financing liabilities: |  |  |  |  |  |  |  |
Total Financing liabilities |  | 4,012,812 |  | 3,089,255 |  |  |  |
Other secured borrowings: |  |  |  |  |  |  |  |
Total Other secured borrowings |  | 678,543 |  | 762,411 |  |  |  |
Senior Notes: |  |  |  |  |  |  |  |
Total Senior notes |  | 346,789 |  | 345,511 |  |  |  |
Derivative financial instruments: |  |  |  |  |  |  |  |
Forward mortgage-backed securities trades |  | 1,550 |  | 0 |  |  |  |
Mortgage servicing rights: |  |  |  |  |  |  |  |
Mortgage servicing rights, at fair value |  | 679,256 |  | 761,190 |  | $ 93,901 |  |
Total Mortgage servicing rights |  | 1,042,978 |  | 1,138,569 |  |  |  |
Carrying Value [Member] |  |  |  |  |  |  |  |
Financial assets: |  |  |  |  |  |  |  |
Total Loans held for sale |  | 314,006 |  | 414,046 |  |  |  |
Financing liabilities: |  |  |  |  |  |  |  |
Total Financing liabilities |  | 4,012,812 |  | 3,089,255 |  |  |  |
Other secured borrowings: |  |  |  |  |  |  |  |
Total Other secured borrowings |  | 678,543 |  | 762,411 |  |  |  |
Senior Notes: |  |  |  |  |  |  |  |
Total Senior notes |  | 346,789 |  | 345,511 |  |  |  |
Mortgage servicing rights: |  |  |  |  |  |  |  |
Total Mortgage servicing rights |  | 1,042,978 |  | 1,138,569 |  |  |  |
Fair Value [Member] |  |  |  |  |  |  |  |
Financial assets: |  |  |  |  |  |  |  |
Total Loans held for sale |  | 314,006 |  | 414,046 |  |  |  |
Financing liabilities: |  |  |  |  |  |  |  |
Total Financing liabilities |  | 3,993,293 |  | 3,065,006 |  |  |  |
Other secured borrowings: |  |  |  |  |  |  |  |
Total Other secured borrowings |  | 682,703 |  | 783,276 |  |  |  |
Senior Notes: |  |  |  |  |  |  |  |
Total Senior notes |  | 355,303 |  | 318,063 |  |  |  |
Mortgage servicing rights: |  |  |  |  |  |  |  |
Total Mortgage servicing rights |  | 1,147,167 |  | 1,222,745 |  |  |  |
Level 2 [Member] | Carrying Value [Member] |  |  |  |  |  |  |  |
Financial assets: |  |  |  |  |  |  |  |
Loans held for sale, at fair value | [2] | 284,632 |  | 309,054 |  |  |  |
Other secured borrowings: |  |  |  |  |  |  |  |
Senior secured term loan | [3],[4] | 323,514 |  | 377,091 |  |  |  |
Senior Notes: |  |  |  |  |  |  |  |
Senior unsecured notes | [3],[4] | 3,094 |  | 345,511 |  |  |  |
Senior secured notes | [3],[4] | 343,695 |  | 0 |  |  |  |
Level 2 [Member] | Fair Value [Member] |  |  |  |  |  |  |  |
Financial assets: |  |  |  |  |  |  |  |
Loans held for sale, at fair value | [2] | 284,632 |  | 309,054 |  |  |  |
Other secured borrowings: |  |  |  |  |  |  |  |
Senior secured term loan | [3],[4] | 327,674 |  | 397,956 |  |  |  |
Senior Notes: |  |  |  |  |  |  |  |
Senior unsecured notes | [3],[4] | 3,048 |  | 318,063 |  |  |  |
Senior secured notes | [3],[4] | 352,255 |  | 0 |  |  |  |
Level 3 [Member] | Carrying Value [Member] |  |  |  |  |  |  |  |
Financial assets: |  |  |  |  |  |  |  |
Loans held for sale, at lower of cost or fair value | [5] | 29,374 |  | 104,992 |  |  |  |
Loans held for investment - Reverse mortgages, at fair value | [2] | 3,565,716 |  | 2,488,253 |  |  |  |
Advances and match funded advances | [3] | 1,709,846 |  | 2,151,066 |  |  |  |
Receivables, net | [3] | 265,720 |  | 286,981 |  |  |  |
Mortgage-backed securities, at fair value | [2] | 8,342 |  | 7,985 |  |  |  |
Financial liabilities: |  |  |  |  |  |  |  |
Match funded liabilities | [3] | 1,280,997 |  | 1,584,049 |  |  |  |
Financing liabilities: |  |  |  |  |  |  |  |
HMBS-related borrowings, at fair value | [2] | 3,433,781 |  | 2,391,362 |  |  |  |
Financing liability - MSRs pledged | [2] | 477,707 |  | 541,704 |  |  |  |
Other | [3] | 101,324 |  | 156,189 |  |  |  |
Other secured borrowings: |  |  |  |  |  |  |  |
Other | [3] | 355,029 |  | 385,320 |  |  |  |
Mortgage servicing rights: |  |  |  |  |  |  |  |
Mortgage servicing rights, at fair value | [2] | 679,256 |  | 761,190 |  |  |  |
MSRs, at amortized cost | [3],[6] | 363,722 |  | 377,379 |  |  |  |
Level 3 [Member] | Fair Value [Member] |  |  |  |  |  |  |  |
Financial assets: |  |  |  |  |  |  |  |
Loans held for sale, at lower of cost or fair value | [5] | 29,374 |  | 104,992 |  |  |  |
Loans held for investment - Reverse mortgages, at fair value | [2] | 3,565,716 |  | 2,488,253 |  |  |  |
Advances and match funded advances | [3] | 1,709,846 |  | 2,151,066 |  |  |  |
Receivables, net | [3] | 265,720 |  | 286,981 |  |  |  |
Mortgage-backed securities, at fair value | [2] | 8,342 |  | 7,985 |  |  |  |
Financial liabilities: |  |  |  |  |  |  |  |
Match funded liabilities | [3] | 1,275,059 |  | 1,581,786 |  |  |  |
Financing liabilities: |  |  |  |  |  |  |  |
HMBS-related borrowings, at fair value | [2] | 3,433,781 |  | 2,391,362 |  |  |  |
Financing liability - MSRs pledged | [2] | 477,707 |  | 541,704 |  |  |  |
Other | [3] | 81,805 |  | 131,940 |  |  |  |
Other secured borrowings: |  |  |  |  |  |  |  |
Other | [3] | 355,029 |  | 385,320 |  |  |  |
Mortgage servicing rights: |  |  |  |  |  |  |  |
Mortgage servicing rights, at fair value | [2] | 679,256 |  | 761,190 |  |  |  |
MSRs, at amortized cost | [3],[6] | 467,911 |  | 461,555 |  |  |  |
Level 1 [Member] | Carrying Value [Member] |  |  |  |  |  |  |  |
Financial assets: |  |  |  |  |  |  |  |
U.S. Treasury notes | [2] | 2,078 |  | 0 |  |  |  |
Level 1 [Member] | Fair Value [Member] |  |  |  |  |  |  |  |
Financial assets: |  |  |  |  |  |  |  |
U.S. Treasury notes | [2] | 2,078 |  | 0 |  |  |  |
Interest Rate Lock Commitments [Member] | Level 2 [Member] | Carrying Value [Member] |  |  |  |  |  |  |  |
Derivative financial instruments: |  |  |  |  |  |  |  |
Interest rate lock commitments | [2] | 6,507 |  | 6,080 |  |  |  |
Interest Rate Lock Commitments [Member] | Level 2 [Member] | Fair Value [Member] |  |  |  |  |  |  |  |
Derivative financial instruments: |  |  |  |  |  |  |  |
Interest rate lock commitments | [2] | 6,507 |  | 6,080 |  |  |  |
Forward Mortgage Backed Securities Trades [Member] | Level 1 [Member] | Carrying Value [Member] |  |  |  |  |  |  |  |
Derivative financial instruments: |  |  |  |  |  |  |  |
Forward mortgage-backed securities trades | [2] | (614) |  | 295 |  |  |  |
Forward Mortgage Backed Securities Trades [Member] | Level 1 [Member] | Fair Value [Member] |  |  |  |  |  |  |  |
Derivative financial instruments: |  |  |  |  |  |  |  |
Forward mortgage-backed securities trades | [2] | (614) |  | 295 |  |  |  |
Interest Rate Cap [Member] | Level 3 [Member] | Carrying Value [Member] |  |  |  |  |  |  |  |
Derivative financial instruments: |  |  |  |  |  |  |  |
Interest rate caps | [2] | 1,836 |  | 2,042 |  |  |  |
Interest Rate Cap [Member] | Level 3 [Member] | Fair Value [Member] |  |  |  |  |  |  |  |
Derivative financial instruments: |  |  |  |  |  |  |  |
Interest rate caps | [2] | $ 1,836 |  | $ 2,042 |  |  |  |
[1] | At December 31, 2016, 2015 and 2014, the balances include $4.9 million, $11.9 million and $21.0 million, respectively, of fair value adjustments.
[2] | Measured at fair value on a recurring basis.
[3] | Disclosed, but not carried, at fair value.
[4] | The carrying values are net of unamortized debt issuance costs and discount. See Note 13 — Borrowings for additional information.
[5] | Measured at fair value on a non-recurring basis.
[6] | Balances include our impaired government-insured stratum of amortization method MSRs, which is measured at fair value on a non-recurring basis and reported net of the valuation allowance. Before applying the valuation allowance of $28.2 million, the carrying value of the impaired stratum at December 31, 2016 was $172.9 million. At December 31, 2015, the carrying value of this stratum was $146.5 million before applying the valuation allowance of $17.3 million.

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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents advances and match funded advances. + References No definition available. + Details
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- Definition HMBS Borrowings, Fair Value Disclosure + References No definition available. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents loans held-for-sale at lower cost of fair value as presented on the statement of financial position which may include mortgage loans held-for-sale, finance receivables held-for-sale, or any other loans classified as held-for-sale which are due the Company as of the balance sheet date. + References No definition available. + Details
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- Definition This element represents the home equity conversion mortgages insured by FHA. + References No definition available. + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13495-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13495-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
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- Definition The fair value as of the balance sheet date of firm holdings in debt obligations issued by the US government including short-term Treasury bills, medium-term Treasury notes, and long-term Treasury bonds, as well as debt issued by agencies. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35711157&loc=d3e42546-110969 + Details
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- Definition Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 + Details
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- Definition Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables. + References No definition available. + Details
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- Definition Amount, after allowance for bad debt, of mortgage loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522 + Details
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- Definition Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Mortgage-Backed Securities -URI http://asc.fasb.org/extlink&oid=6517959 + Details
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- Definition The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Fair value portion of receivables, including, but not limited to, trade account receivables, note receivables, and loan receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13728-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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