Stockholders' Deficiency - Common Stock, Treasury Stock Issued and Outstanding (Detail)	0 Months Ended						12 Months Ended			1 Months Ended	12 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, 2012	Dec. 31, 2011	Dec. 31, 2013	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. 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
Common Stock [Roll Forward]
Beginning Balance (shares)											49,986,651	49,986,651	50,000,497			3,125,000	3,125,000	3,125,000
Cancellation of restricted stock (shares)													(13,846)					0
Withholding of restricted stock to satisfy taxes (shares)	3,953	79,035	594	4,121	52,138	82,174	83,582	138,433				0	0				0	0
Conversion of Class B shares to Class A shares (shares)										3,125,000	3,125,000			3,125,000
Conversion of Stock, Shares Converted															(3,125,000)	(3,125,000)
Restricted stock grants (shares)											120,000					0
Ending Balance (shares)											53,231,651	49,986,651	49,986,651			0	3,125,000	3,125,000
Treasury Stock Outstanding [Roll Forward]
Beginning Balance (shares)			671,271		532,838	532,838	671,271	532,838	754,853		754,853
Withholding of restricted stock to satisfy taxes (shares)	3,953	79,035	594	4,121	52,138	82,174	83,582	138,433				0	0				0	0
Ending Balance (shares)							754,853	671,271	754,853		754,853	754,853