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Other Investments - Servicing Advance Investments (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
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Investment [Line Items] |  |
Total Servicer Advance Receivables | $ 236,632 | $ 286,778
Residential Loans |  |
Investment [Line Items] |  |
Principal and interest advances | 91,707 | 144,336
Escrow advances (taxes and insurance advances) | 95,071 | 94,828
Corporate advances | $ 49,854 | $ 47,614

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- Definition Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746 + Details
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