Quarterly Results of Operations (Parenthetical) (Detail) (USD $)	3 Months Ended																					12 Months Ended
	Dec. 31, 2011		Sep. 30, 2011	Jun. 30, 2011		Mar. 31, 2011		Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010		Mar. 31, 2010		Dec. 31, 2009		Sep. 30, 2009		Jun. 30, 2009		Mar. 31, 2009		Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Quarterly Financial Information [Line Items]
(Loss) gain on extinguishment of debt, net of tax																						$ (5,748,000)	$ (3,429,000)	$ 10,028,000
Postemployment and other reorganization costs, net of tax																						6,900,000
Intangible asset write off																						7,134,000
Net earnings per common share, diluted	$ 0.76	[1]	$ 0.58	$ 0.60	[2]	$ 0.41	[3]	$ 0.47	$ 0.52	$ 0.21	[4]	$ 6.26	[5]	$ 0.48	[6]	$ 0.28	[6]	$ 0.33	[6]	$ 0.27	[6]	$ 2.33	$ 7.42	$ 1.36
Postemployment and Other Reorganization Costs
Quarterly Financial Information [Line Items]
Postemployment and other reorganization costs, net of tax	4,200,000
Net earnings per common share, diluted	$ 0.08
Legal Settlement
Quarterly Financial Information [Line Items]
Gain from litigation settlement, net (Note 8)												301,400,000
Net earnings per common share, diluted												$ 5.85
8 1/4% Senior Notes due 2015
Quarterly Financial Information [Line Items]
(Loss) gain on extinguishment of debt, net of tax						(8,200,000)				(14,700,000)
Net earnings per common share, diluted						$ 0.16				$ 0.28
Tender offer and open market repurchases amount										297,800,000
Prior Senior Secured Revolving Credit Facility
Quarterly Financial Information [Line Items]
(Loss) gain on extinguishment of debt, net of tax				(3,400,000)
Net earnings per common share, diluted				$ 0.07
Senior Secured Credit Facility
Quarterly Financial Information [Line Items]
(Loss) gain on extinguishment of debt, net of tax																								6,200,000
Net earnings per common share, diluted																								$ 0.13
Tender offer and open market repurchases amount														133,500,000										133,500,000
Impairment of Intangible Assets
Quarterly Financial Information [Line Items]
Intangible asset write off	$ 4,300,000
Net earnings per common share, diluted	$ 0.08

[1] Includes $4.3 million, net of tax, or $0.09 per common share, diluted, in intangible asset write-offs (see Note 2, Goodwill and Other Intangible Assets, for further information) and $4.2 million, net of tax, or $0.08 per common share, diluted, in postemployment and other reorganization costs.

[2] Includes a $3.4 million loss on extinguishment of debt, net of tax, or $0.07 per common share, diluted, related to the replacement and termination of our Prior Senior Secured Credit Facility. For further information, see Note 3, Long-Term Debt.

[3] Includes a $8.2 million loss on extinguishment of debt, net of tax, or $0.16 per common share, diluted, related to our cash tender offer, consent solicitation and redemption of our outstanding 2015 Notes. For further information, see Note 3, Long-Term Debt.

[4] Includes a $14.7 million loss on extinguishment of debt, net of tax, or $0.28 per common share, diluted, related to our tender offer and open market repurchases of $297.8 million aggregate principal amount of our 8 1/4% Senior Notes due 2015. For further information, see Note 3, Long-Term Debt.

[5] Includes a $301.4 million gain on litigation settlement, net of tax and related payments, or $5.85 per common share, diluted, associated with the News America litigation settlement proceeds. For further information, see Note 8, Gain from Litigation Settlement.

[6] Includes a $6.2 million gain on extinguishment of debt, net of tax, or $0.13 per common share, diluted, related to our repurchases of an aggregate principal amount of $133.5 million of outstanding term loans under our senior secured credit facility. For further information, see Note 3, Long-Term Debt.