XML 100 R108.htm IDEA: XBRL DOCUMENT

Permanent Equity and Restrictions - Summary of Share Transactions Occurred in Stockholders' Equity During the Year (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Stockholders Equity Note [Line Items]
Forfeiture/cancellation of restricted stock		1,348,361
Cancellation of Restricted Stock		90,135
Restricted units of IFMI common stock granted		90,135
Forfeited, restricted stock in connection with the separation, release, and repurchase agreements	1,508,353	1,348,361	694
2009 Equity Award Plan [Member]
Stockholders Equity Note [Line Items]
Surrender of restricted stock	116,595
PrinceRidge [Member]
Stockholders Equity Note [Line Items]
Forfeited, restricted stock in connection with the separation, release, and repurchase agreements	848,742