Statutory Financial Information of Insurance Subsidiaries (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Repwest [Member]
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	$ 18,286		$ 16,923		$ (37,417)
Audited statutory capital and surplus	126,836		94,284		77,285
ARCOA [Member]
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)			(1,881)		(362)
Audited statutory capital and surplus			2,201		2,469
Oxford [Member]
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	11,130		13,936		1,677
Audited statutory capital and surplus	148,486		131,920		129,445
CFLIC [Member]
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	9,567		8,734		8,513
Audited statutory capital and surplus	28,848		28,042		36,200
NAI [Member]
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	(419)		(1,962)		(4,151)
Audited statutory capital and surplus	10,185		9,804		11,564
DGLIC [Member]
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	0	[1]	0	[1]	1,828	[1]
Audited statutory capital and surplus	$ 0	[1]	$ 0	[1]	$ 7,276	[1]

[1] Merged with CFLIC on December 31, 2012.