Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Other Liabilities, Current [Abstract]
Payroll related	$ 9,718	$ 12,703
Freight and rebates	5,238	5,057
Benefits and pensions	4,550	6,640
Accrual for Taxes Other than Income Taxes, Current	3,959	4,346
Accrued Income Taxes	2,497	1,302
Equity repurchases	2,700	0
Other	5,450	4,758
Other Liabilities, Current	$ 34,112	$ 34,806