Stockholders' Deficiency - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended									12 Months Ended
	Jul. 02, 2012	Jan. 02, 2012	Jan. 10, 2012	Jul. 02, 2011	Jan. 02, 2011	Jan. 10, 2011	Jul. 02, 2010	Jan. 02, 2010	Jan. 10, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Apr. 08, 2010	Oct. 08, 2009
Class of Stock [Line Items]
Preferred stock										50,000,000
Authorized Shares of Capital Stock Before October 2009 Amendment										1,120,000,000
Authorized shares of capital stock										1,150,000,000
Preferred stock shares issued														9,336,905
Percentage shares held by third parties														46.00%
Exchange offer price per share														$ 5.21
Percentage ownership of outstanding common stock by affiliate										78.00%
Percentage ownership of outstanding capital stock by affiliate										66.00%
Percentage voting power of capital stock held by affiliate										77.00%			9.20%
Treasury stock authorized to satisfy minimum statutory tax withholding requirements	3,953	594	79,035	4,121	52,138	82,174	4,121	55,159	87,881	83,582	138,433	147,161
Weighted average price per share	$ 14.45	$ 14.87	$ 14.18	$ 17.27	$ 9.84	$ 9.85	$ 10.79	$ 17.01	$ 17.02
Total value										$ 1.2	$ 1.4	$ 2.5
Class A Common Stock [Member]
Class of Stock [Line Items]
Authorized common stock										900,000,000	900,000,000
Common stock par value										$ 0.01	$ 0.01	$ 0.01
Common Stock Shares Issued to Affiliate														9,336,905
Percentage ownership of outstanding common stock by affiliate										76.00%
Treasury stock authorized to satisfy minimum statutory tax withholding requirements
Class B Common Stock [Member]
Class of Stock [Line Items]
Authorized common stock										200,000,000	200,000,000
Common stock par value										$ 0.01	$ 0.01
Percentage ownership of outstanding common stock by affiliate										100.00%
Treasury stock authorized to satisfy minimum statutory tax withholding requirements
Prior to Amendment [Member]
Class of Stock [Line Items]
Preferred stock										20,000,000