Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule Of Income Tax [Line Items]
Valuation allowance for deferred tax assets	$ 208,061,000	$ 160,266,000
Foreign net operating loss carryforwards	277,800,000
U.S federal net operating loss carryforwards	316,000,000
State net operating losses carryforwards	23,231,000	18,888,000
Undistributed earnings of subsidiaries	213,700,000
Unrecognized deferred income tax liabilities	3,900,000
Taxes on earnings	10,700,000
Liabilities recorded for payment of tax-related interest and penalties	15,300,000	15,300,000	16,400,000
Expire in the years 2013 to 2015
Schedule Of Income Tax [Line Items]
Foreign net operating loss carryforwards	12,400,000
Additional Paid-in Capital
Schedule Of Income Tax [Line Items]
U.S federal net operating loss carryforwards	16,200,000
Foreign Country
Schedule Of Income Tax [Line Items]
Net operating loss carryforwards, valuation allowance	67,100,000
Foreign Country | Minimum
Schedule Of Income Tax [Line Items]
Net operating loss carryforwards, expiration year	2013
Foreign Country | Maximum
Schedule Of Income Tax [Line Items]
Net operating loss carryforwards, expiration year	2015
Domestic Country
Schedule Of Income Tax [Line Items]
Net operating loss carryforwards, valuation allowance	104,900,000
Domestic Country | Minimum
Schedule Of Income Tax [Line Items]
Net operating loss carryforwards, expiration year	2023
Domestic Country | Maximum
Schedule Of Income Tax [Line Items]
Net operating loss carryforwards, expiration year	2032
State and Local Jurisdiction
Schedule Of Income Tax [Line Items]
Valuation allowance for deferred tax assets	12,900,000
Net operating loss carryforwards, expiration year	2013
Net operating loss carryforwards, valuation allowance	23,200,000
State net operating losses carryforwards	$ 446,800,000