Policy Benefits and Losses, Claims and Loss Expenses Payable for Property and Casualty Insurance (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Reinsurance:
Total	$ 1,062,188		$ 1,082,598
Operating Segments [Member] | Property and Casualty Insurance [Member]
Reinsurance:
Unpaid losses and loss adjustment expense	271,609		295,126
Reinsurance losses payable	135		90
Total	$ 271,744	[1]	$ 295,216	[2]

[1] Balances as of December 31, 2014

[2] Balances as of December 31, 2013