Stockholders' Deficiency - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended						12 Months Ended					1 Months Ended	12 Months Ended				0 Months Ended		1 Months Ended	12 Months Ended
	Jul. 02, 2012	Jan. 10, 2012	Jan. 02, 2012	Jul. 02, 2011	Jan. 02, 2011	Jan. 10, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Oct. 08, 2013	Oct. 08, 2009	Oct. 31, 2013 Class A Common Stock	Dec. 31, 2013 Class A Common Stock	Dec. 31, 2012 Class A Common Stock	Dec. 31, 2011 Class A Common Stock	Dec. 31, 2003 Class A Common Stock	Oct. 09, 2013 Preferred Stock	Oct. 08, 2013 Preferred Stock	Oct. 31, 2013 Class B Common Stock	Dec. 31, 2013 Class B Common Stock	Dec. 31, 2012 Class B Common Stock	Dec. 31, 2011 Class B Common Stock	Dec. 31, 2013 Prior to Amendment
Class of Stock [Line Items]
Common Stock, shares authorized (shares)													900,000,000	900,000,000						200,000,000	200,000,000
Common Stock, par value (usd per share)													$ 0.01	$ 0.01	$ 0.01					$ 0.01	$ 0.01
Preferred stock shares authorized (shares)							50,000,000																20,000,000
Authorized Shares of Capital Stock Before October 2009 Amendment (shares)							1,120,000,000
Authorized shares of capital stock (shares)							1,150,000,000
Conversion of Stock, Shares Converted																			3,125,000	3,125,000
Conversion of Class B shares to Class A shares (shares)												3,125,000	3,125,000			3,125,000
Redemption of Preferred Stock							$ 48.6	$ 0	$ 0								$ 48.6
Conversion rate of Class B shares to Class A shares												1
Preferred stock shares issued (shares)											9,336,905							9,336,905
Exchange offer price per share (usd per share)										$ 5.21	$ 5.21							$ 5.21
Percentage ownership of outstanding common stock by affiliate (percent)							78.00%						78.00%
Treasury stock authorized to satisfy minimum statutory tax withholding requirements (shares)	3,953	79,035	594	4,121	52,138	82,174		83,582	138,433					0	0						0	0
Weighted average price per share (usd per share)	$ 14.45	$ 14.18	$ 14.87	$ 17.27	$ 9.84	$ 9.85
Total value of shares related to tax withholding for share based compensation								$ 1.2	$ 1.4