Components of Other Intangible Assets, Net (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, Gross Amount	$ 189,520,000	$ 180,457,000
Finite-lived intangible assets, Accumulated Amortization	(68,291,000)	(54,485,000)
Finite-lived intangible assets, Net Amount	121,229,000	125,972,000
Indefinite-lived intangible assets, Net Amount	93,942,000	87,641,000
Other intangible assets, Net Amount	215,171,000	213,613,000
Impairment of Intangible Assets, Finite-lived	0	7,134,000	0
Amortization of Intangible Assets	13,806,000	12,624,000	12,624,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	14,900,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	14,900,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	14,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	13,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	12,800,000
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	51,500,000
Mailing lists, non compete agreements and other
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, Gross Amount	47,320,000	40,457,000
Finite-lived intangible assets, Accumulated Amortization	(13,025,000)	(9,894,000)
Finite-lived intangible assets, Net Amount	34,295,000	30,563,000
Weighted average remaining useful life	12 years 2 months 12 days	15 years 1 month
Customer relationships
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, Gross Amount	142,200,000	140,000,000
Finite-lived intangible assets, Accumulated Amortization	(55,266,000)	(44,591,000)
Finite-lived intangible assets, Net Amount	$ 86,934,000	$ 95,409,000
Weighted average remaining useful life	8 years 2 months	9 years