Valuation and Qualifying Accounts (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Valuation Allowance for Deferred Tax Assets
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 208,061	[1]	$ 160,266	[1]	$ 95,734	[1]
Additions Charged to Costs and Expenses	84,213	[1],[2]	48,711	[1],[2]	72,502	[1],[2]
Additions Charged to Other Accounts	114	[1]	(916)	[1]	(7,970)	[1]
Balance at End of Period	292,388	[1]	208,061	[1]	160,266	[1]
Allowance for Doubtful and Disputed Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	22,116		24,682		29,561
Additions Charged to Costs and Expenses	11,674				31,897
Write-offs	(3,386)		(2,558)		(1,757)
Recoveries			(8)		(35,019)
Balance at End of Period	$ 30,404		$ 22,116		$ 24,682

[1] Amounts charged to other accounts included in other comprehensive loss

[2] Net of reductions and other adjustments, all of which are charged to costs and expenses.