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Fair Value Measurements - Unobservable Input Reconciliation (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2017 | Mar. 31, 2016
Total Investments |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance at beginning of period | $ 4,959 | $ 4,083 |  |
Total realized/unrealized gains (losses): |  |  |  |
Included in earnings and reported as losses incurred, net | 0 | 0 |  |
Purchases | 0 | 3,091 |  |
Sales | (8) | (2,561) |  |
Balance at end of period | 4,959 | 4,083 | $ 4,951 | $ 4,613
Debt Securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance at beginning of period | 691 | 1,228 |  |
Total realized/unrealized gains (losses): |  |  |  |
Included in earnings and reported as losses incurred, net | 0 | 0 |  |
Purchases | 0 | 0 |  |
Sales | (8) | (36) |  |
Balance at end of period | 691 | 1,228 | 683 | 1,192
Equity securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance at beginning of period | 4,268 | 2,855 |  |
Total realized/unrealized gains (losses): |  |  |  |
Included in earnings and reported as losses incurred, net | 0 | 0 |  |
Purchases | 0 | 3,091 |  |
Sales | 0 | (2,525) |  |
Balance at end of period | 4,268 | 2,855 | 4,268 | 3,421
Real Estate Acquired |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance at beginning of period | 11,748 | 12,149 |  |
Total realized/unrealized gains (losses): |  |  |  |
Included in earnings and reported as losses incurred, net | (163) | (293) |  |
Purchases | 8,683 | 12,267 |  |
Sales | (9,538) | (11,274) |  |
Balance at end of period | $ 11,748 | $ 12,149 | $ 10,730 | $ 12,849

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- Definition Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included In Earnings, Reported As Loss Incurred, Net + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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