Income Taxes (Details) (USD $)	3 Months Ended
	Mar. 31, 2012	Jun. 30, 2011	Jun. 30, 2012	Dec. 31, 2011
Income Tax Disclosure [Line Items]
U.S. valuation allowance release		$ 87,000,000
Out of period income tax adjustment	2,000,000
Italian income tax settlement		6,000,000
Deferred taxes, other current assets		25,697,000	26,685,000	26,685,000
Deferred Taxes, investments and other assets, net		2,991,000	2,381,000	3,508,000
Deferred Tax Liabilities		(54,197,000)	(43,667,000)	(43,248,000)
Net deferred tax liability		(25,509,000)	(14,601,000)	(13,055,000)
Unrecognized tax benefits			6,000,000
Unrecognized tax benefits that would impact effective tax rate			4,000,000
Unrecognized tax benefits, income tax penalties and interest accrued			2,000,000
Significant change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit			$ 1,000,000