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Acquisition - Narrative (Details) - Workmen's Auto Insurance Company [Member] - USD ($)
$ in Thousands
Jan. 12, 2015
Jan. 02, 2015
Business Acquisition [Line Items]    
Cash   $ 8,000
Less: Amount held in escrow   $ 2,000
Maximum duration for escrow security   3 years
Capital contribution to WAIC $ 15,000