Statutory Financial Information of Insurance Subsidiaries (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013		Mar. 31, 2012	Mar. 31, 2011
Repwest
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	$ 16,923		$ (37,417)	$ 6,946
Audited statutory capital and surplus	94,284		77,285	125,102
ARCOA
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	(1,881)		(362)	(773)
Audited statutory capital and surplus	2,201		2,469	2,769
Oxford
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	13,936		1,677	4,640
Audited statutory capital and surplus	131,920		129,445	129,173
CFLIC
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	8,734		8,513	4,347
Audited statutory capital and surplus	28,042		36,200	32,799
NAI
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	(1,962)		(4,151)	(857)
Audited statutory capital and surplus	9,804		11,564	11,265
DGLIC
Statutory financial information of insurance subsidiaries:
Audit statutory net income (loss)	0	[1]	1,828	796
Audited statutory capital and surplus	$ 0	[1]	$ 7,276	$ 5,966

[1] Merged with CFLIC on December 31, 2012