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Reinsurance - Summary of Quota Reinsurance Arrangements (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Effects of Reinsurance [Line Items] |  |  |  |
Ceded losses incurred | $ 4,118 | $ 8,612 | $ 9,017 | $ 16,133
Quota Share Reinsurance Agreements, Excluding Captive Agreements |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |
Ceded premiums written and earned, net of profit commission | 28,917 | 29,961 | 57,812 | 61,627
Ceded losses incurred | 4,424 | 6,070 | 9,111 | 14,583
Ceding commissions | 12,248 | 11,946 | 24,251 | 23,522
Profit commission | $ 32,325 | $ 29,767 | $ 63,442 | $ 55,982

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- Definition Reinsurance, Profit Commission + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of fees and commissions from financial services and banking activities and correspondent clearing. Includes fees from depositor accounts, credit cards, merchant discounts, and fiduciary and trust activities, guarantee fees, investment advisory, management, and administrative fees, transfer agent fees, and insurance commissions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition Amount of reduction of provision for policy benefits and costs incurred for policies ceded. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6480758&loc=d3e6811-158387 + Details
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