Premiums Written and Earned - Schedule of Net Premiums Written and Earned (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		14 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014
Premiums Written And Earned [Line Items]
Direct, Premiums Written			$ 0
Net, Premiums Earned	61,658	31,661
Non-Life Run-Off [Member]
Premiums Written And Earned [Line Items]
Direct, Premiums Written	1,279	11,856
Assumed, Premiums Written	40	242
Ceded, Premiums Written	(276)	(2,390)
Net, Premiums Written	1,043	9,708
Direct, Premiums Earned	2,734	33,581
Assumed, Premiums Earned	34	555
Ceded, Premiums Earned	(241)	(3,216)
Net, Premiums Earned	2,527	30,920
Active Underwriting [Member]
Premiums Written And Earned [Line Items]
Direct, Premiums Written	26,916
Assumed, Premiums Written	(1,599)
Ceded, Premiums Written	(5,852)
Net, Premiums Written	19,465
Direct, Premiums Earned	24,369
Assumed, Premiums Earned	13,788
Ceded, Premiums Earned	(5,518)
Net, Premiums Earned	32,639
Life and Annuities [Member]
Premiums Written And Earned [Line Items]
Life, Premium Written, Life and annuities	25,996	741
Net, Premiums Earned	26,492	741
Life, Premium Earned, Life and annuities	$ 26,492	$ 741