Pension Benefits and Other Postretirement Benefit Plans (Additional Information) (Details) - Pension Benefits [Member] - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jan. 22, 2015
Pension and Other Postretirement Benefits Disclosure [Line Items]
Settlement charge		$ (33)			$ 77
Former President and Chief Executive Officer [Member]
Pension and Other Postretirement Benefits Disclosure [Line Items]
Benefit payments			$ 800
Settlement charge			100
Arlon [Member]
Pension and Other Postretirement Benefits Disclosure [Line Items]
Unfunded status of the plan						$ 2,000
Non-Qualified Defined Benefit Pension Plan [Member]
Pension and Other Postretirement Benefits Disclosure [Line Items]
Employer contributions			$ 800	$ 0
Qualified Defined Benefit Pension Plans [Member]
Pension and Other Postretirement Benefits Disclosure [Line Items]
Employer contributions	$ 6,500	$ 6,500