Accounts Receivable, Accounts Payable and Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Accounts Receivable Accounts Payable And Accrued Liabilities [Abstract]

Schedule of Accounts Receivable

Accounts receivable consist of the following:

	As of December 31
(in thousands)	2013		2012
Trade accounts receivable, less estimated returns, doubtful accounts and allowances
of $33,834 and $35,462	$	398,014	$	379,355
Other accounts receivable	30,639		19,849
	$	428,653	$	399,204

Schedule of Changes in Allowance for Doubtful Accounts and Returns and Allowance for Advertising Rate Adjustments and Discounts

The changes in allowance for doubtful accounts and returns and allowance for advertising rate adjustments and discounts were as follows:

(in thousands)	Balance at Beginning of Period		Additions – Charged to Costs and Expenses		Deductions			Balance at End of Period
2013
Allowance for doubtful accounts and returns	$	33,612	$	57,245	$	(57,023	)	$	33,834
Allowance for advertising rate adjustments and discounts	1,850		—		(1,850		)	—
	$	35,462	$	57,245	$	(58,873	)	$	33,834
2012
Allowance for doubtful accounts and returns	$	48,199	$	55,605	$	(70,192	)	$	33,612
Allowance for advertising rate adjustments and discounts	2,026		15,088		(15,264		)	1,850
	$	50,225	$	70,693	$	(85,456	)	$	35,462
2011
Allowance for doubtful accounts and returns	$	67,007	$	61,327	$	(80,135	)	$	48,199
Allowance for advertising rate adjustments and discounts	3,174		11,868		(13,016		)	2,026
	$	70,181	$	73,195	$	(93,151	)	$	50,225

Schedule of Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities consist of the following:

	As of December 31
(in thousands)	2013		2012
Accounts payable and accrued liabilities	$	343,620	$	310,294
Accrued compensation and related benefits	162,079		176,102
	$	505,699	$	486,396