Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2015	Mar. 31, 2016
Contingent liability premium taxes		$ 2.5
Contingent liability penalties and interest		0.7
TBIC Holding Corporation [Member]
Payment of contingent consideration	$ 1.2
Potential remaining contingent purchase price, maximum		$ 1.8