Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Income Tax Contingency [Line Items]
Deferred Tax Liabilities, Undistributed Foreign Earnings	$ 2,204,000	$ 140,000
Expected foreign subsidiary earnings repatriation	22,000,000
Tax credit carryforwards	4,900,000
Total unrecognized tax benefit that would not affect the effective tax rate, if recognized	3,800,000
Liability for penalties	2,100,000	2,200,000
Liability for interest	2,500,000	2,600,000
Not Subject To Expiration [Member]
Income Tax Contingency [Line Items]
Tax credit carryforwards	2,500,000
Subject To Expiration [Member]
Income Tax Contingency [Line Items]
Tax credit carryforwards	2,400,000
Investments In Foreign Subsidiaries And Foreign Corporate Joint Ventures That Are Essentially Permanent In Duration [Member]
Income Tax Contingency [Line Items]
Amount in excess of the amount for financial reporting over the tax bases	145,600,000
Deferred Tax Liabilities, Undistributed Foreign Earnings	35,100,000
Federal Domestic [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	4,600,000
Net operating loss carryforwards, expiration period	between 2020 - 2028
Foreign Country [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	70,500,000
State And Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	4,100,000
Net operating loss carryforwards, expiration period	between 2014 and 2020
Operating Loss Carryforward With No Expiration Date [Member] | Foreign Country [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	20,000,000
Operating Loss Carryforward Expiring Between 2019-2021 [Member] | Foreign Country [Member] | Subject To Expiration [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	50,500,000
Net operating loss carryforwards, expiration period	between 2019 and 2021
Subject To Utilization Limitations [Member]
Income Tax Contingency [Line Items]
Tax credit carryforwards	1,500,000
Subject To Utilization Limitations [Member] | State And Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	4,100,000
Minimum [Member]
Income Tax Contingency [Line Items]
Years open to examination	2008
Years under examination	2009
Minimum [Member] | Subject To Expiration [Member]
Income Tax Contingency [Line Items]
Tax credit carryforwards, expiration period	Dec. 31, 2029
Maximum [Member]
Income Tax Contingency [Line Items]
Years open to examination	2011
Years under examination	2010
Maximum [Member] | Subject To Expiration [Member]
Income Tax Contingency [Line Items]
Tax credit carryforwards, expiration period	Dec. 31, 2032
Foreign Subsidiary Earnings Repatriation [Member]
Income Tax Contingency [Line Items]
Income Tax Expense (Benefit), Repatriation of Foreign Earnings, Expected in Next Twelve Months	$ 2,000,000