Notes Payable - Additional Information (Detail) (USD $)	9 Months Ended	12 Months Ended	9 Months Ended			9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 13% Senior First Lien Notes [Member]	Sep. 30, 2013 13% Senior First Lien Notes [Member]	Dec. 31, 2013 13% Senior First Lien Notes [Member]	Sep. 30, 2014 13% Senior Second Lien Notes [Member]	Sep. 30, 2014 PIK Notes [Member]	Dec. 31, 2013 PIK Notes [Member]	Sep. 30, 2014 Runoff Notes [Member]	Dec. 31, 2013 Runoff Notes [Member]
Debt Instrument [Line Items]
Note issued			$ 110,000,000			$ 20,000,000	$ 17,600,000	$ 13,900,000
Notes maturity date			Mar. 19, 2030			Mar. 19, 2030
Outstanding amounts of notes	0								30,300,000	105,500,000
Principal payments			78,900,000		36,300,000
Cash interest paid on Notes			5,100,000	9,700,000
Collateral Account used for future payments	40,000	100,000
Principal and interest payments	$ 40,000	$ 100,000