Reinsurance and Policy Benefits and Losses, Claims and Loss Expenses Payable (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Year ended December 31,
Direct amount (a)	$ 182,693	[1]	$ 196,649	[1]	$ 218,189	[1]
Ceded to other companies	632		4,347		9,332
Assumed from other companies	16,910		20,155		101,336
Net amount (a)	198,971	[1]	212,457	[1]	310,193	[1]
Direct amount (a) - Life insurance in force	861,967	[1],[2],[3]	811,035	[1],[4]	761,070	[1]
Ceded to other companies - Life insurance in force	403		16,471		14,868
Assumed from other companies - Life insurance in force	1,033,136		1,083,550		1,142,247
Net amount (a) - Life insurance in force	1,894,700	[1]	1,878,114	[1]	1,888,449	[1]
Percentage of amount assumed to net - Life insurance in force	55.00%		58.00%		60.00%
Premiums earned: Life [Member]
Year ended December 31,
Direct amount (a)	45,625	[1]	52,751	[1]	63,396	[1]
Ceded to other companies	212		2,685		6,909
Assumed from other companies	12,888		13,640		94,982
Net amount (a)	58,301	[1]	63,706	[1]	151,469	[1]
Percentage of amount assumed to net	22.00%		21.00%		63.00%
Premiums earned: Accident and health [Member]
Year ended December 31,
Direct amount (a)	95,536	[1]	106,266	[1]	115,599	[1]
Ceded to other companies	397		454		503
Assumed from other companies	3,157		3,409		3,635
Net amount (a)	98,296	[1]	109,221	[1]	118,731	[1]
Percentage of amount assumed to net	3.00%		3.00%		3.00%
Premiums earned: Annuity [Member]
Year ended December 31,
Direct amount (a)	847	[1]	6,095	[1]	9,049	[1]
Ceded to other companies	23		1,208		1,920
Assumed from other companies	498		301		233
Net amount (a)	1,322	[1]	5,188	[1]	7,362	[1]
Percentage of amount assumed to net	38.00%		6.00%		3.00%
Premiums earned: Property and casualty [Member]
Year ended December 31,
Direct amount (a)	40,685	[1]	31,537	[1]	30,145	[1]
Ceded to other companies	0		0		0
Assumed from other companies	367		2,805		2,486
Net amount (a)	$ 41,052	[1]	$ 34,342	[1]	$ 32,631	[1]
Percentage of amount assumed to net	1.00%		8.00%		8.00%

[1] Balances are reported net of inter-segment transactions

[2] Balance for the period ended December 31, 2013

[3] Eliminate intercompany investments

[4] The earned and written premiums are reported net of intersegment transactions. There were no earned premiums eliminated for the years ended December 31, 2013, 2012 and 2011, respectively.