XML 44 R23.htm IDEA: XBRL DOCUMENT

Fair Value Measurements - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended		9 Months Ended
	Dec. 31, 2009	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Principal amount, due date	Dec. 31, 2012
Short term liability		$ 14.5		$ 14.5
Net present value model, discount rate		17.00%		17.00%
Number Of trading Days		30 days		30 days
Issuance Of common stock value For payment of stock issuance cost				1.15
Interest expenses		0.5	0.5	1.6	1.4
Principal Amount
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Issued note to Holdings, principal amount	15

Interest expense on all other items not previously classified. For example, includes dividends associated with redeemable preferred stock of a subsidiary that is treated as a liability in the parent's consolidated balance sheet.

+ References+ Details