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Commitments and Contingencies (Details) | Dec. 31, 2017 USD ($) | Jun. 30, 2017 USD ($) | Mar. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) claim
--- | --- | --- | --- | ---
Commitments and Contingencies |  |  |  |
Co-investment commitments in partnership |  |  | $ 97,100,000 |
Prior Owner |  |  |  |
Commitments and Contingencies |  |  |  |
Reimbursable amount of investment commitments |  |  | 11,000,000 |
Consolidated Affiliates |  |  |  |
Commitments and Contingencies |  |  |  |
Contingent liability |  |  | 84,900,000 |
Expected payments of contingent liability |  |  | 10,300,000 |
Present value of expected payments of contingent liabilities |  |  | 8,900,000 |
Consolidated Affiliates | Scenario, Forecast |  |  |  |
Commitments and Contingencies |  |  |  |
Contingent liability |  | $ 57,500,000 |  |
Expected payments of contingent liability | $ 3,000,000 |  |  |
Equity Method Investee |  |  |  |
Commitments and Contingencies |  |  |  |
Contingent liability |  |  | $ 170,000,000 |
Equity Method Investee | Scenario, Forecast |  |  |  |
Commitments and Contingencies |  |  |  |
Expected payments of contingent liability | $ 0 |  |  |
Third Avenue Focused Credit Fund | Affiliated Entity | Third Avenue |  |  |  |
Commitments and Contingencies |  |  |  |
Number of pending claims | claim |  |  |  | 1
Loss contingency reserve |  |  |  | $ 15,000,000

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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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