Activity in the Liability for Unpaid Losses and Loss Adjustment Expenses for Property and Casualty Insurance (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Paid related to:
Plus: reinsurance recoverables	$ 147,301	$ 186,533
Operating Segments [Member] | Property and Casualty Insurance [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance at January 1	330,093	382,328	276,355
Less: reinsurance recoverables	176,439	223,865	167,315
Net balance at January 1	153,654	158,463	109,040
Incurred related to:
Current year	9,861	8,962	9,297
Prior years	1,652	7,036	56,445
Total incurred	11,513	15,998	65,742
Paid related to:
Current year	5,226	4,405	5,049
Prior years	1,350	16,402	11,270
Total paid	6,576	20,807	16,319
Net balance at December 31	158,591	153,654	158,463
Plus: reinsurance recoverables	136,535	176,439	223,865
Balance at December 31	$ 295,126	$ 330,093	$ 382,328