Income Taxes Deferred Tax Assets Liabilities (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Current Fiscal Year End Date	--12-31
Operating Loss Carryforwards	$ 24,700,000
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	0
Deferred Tax Assets, Operating Loss Carryforwards	5,866,000	7,143,000
Deferred Tax Assets, Tax Credit Carryforwards	3,123,000	5,483,000
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Reserves	13,497,000	9,804,000
Deferred Tax Liabilities, Property, Plant and Equipment	(5,540,000)	(3,203,000)
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits		1,200,000
Deferred Tax Assets, Other	5,419,000	9,857,000
Deferred Tax Assets, Gross	28,491,000	33,487,000
Deferred Tax Assets, Valuation Allowance	(7,243,000)	(9,342,000)
Deferred Tax Assets, Net	21,248,000	24,145,000
Deferred Tax Liabilities, Goodwill and Intangible Assets, Intangible Assets	(1,751,000)	(2,174,000)
Deferred Tax Liabilities, Financing Arrangements		13,900,000
Deferred Tax Liabilities, Other	(3,624,000)	(4,830,000)
Deferred Tax Liabilities	(10,915,000)	(10,207,000)
Deferred Tax Assets (Liabilities), Net	10,333,000	13,938,000
Deferred Tax Assets, Net, Current	8,024,000	10,483,000
Deferred Tax Liabilities, Current	(4,138,000)	(4,676,000)
Deferred Tax Assets, Net, Noncurrent	13,224,000	13,662,000
Deferred Tax Liabilities, Noncurrent	(6,777,000)	(5,531,000)
Foreign Pension Plans, Defined Benefit [Member]
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits	586,000
Deferred Tax Assets, Net	$ 268,000	$ 1,200,000