Pension and Other Postretirement Benefits - Cash Flow (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Minimum Cash Contributions, Next Fiscal Year	$ 6,172
Expected Benefit Payments, Next Twelve Months	6,840
Expected Benefit Payments, Year Two	6,449
Expected Benefit Payments, Year Three	6,627
Expected Benefit Payments, Year Four	6,695
Expected Benefit Payments, Year Five	6,879
Expected Benefit Payments, Thereafter	39,918
Domestic [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum Cash Contributions, Next Fiscal Year	1,989
Expected Benefit Payments, Next Twelve Months	4,872
Expected Benefit Payments, Year Two	4,548
Expected Benefit Payments, Year Three	4,509
Expected Benefit Payments, Year Four	4,408
Expected Benefit Payments, Year Five	4,396
Expected Benefit Payments, Thereafter	22,096
Foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum Cash Contributions, Next Fiscal Year	4,183
Expected Benefit Payments, Next Twelve Months	1,968
Expected Benefit Payments, Year Two	1,901
Expected Benefit Payments, Year Three	2,118
Expected Benefit Payments, Year Four	2,287
Expected Benefit Payments, Year Five	2,483
Expected Benefit Payments, Thereafter	17,822
Domestic Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum Cash Contributions, Next Fiscal Year	607
Expected Benefit Payments, Next Twelve Months	607
Expected Benefit Payments, Year Two	565
Expected Benefit Payments, Year Three	544
Expected Benefit Payments, Year Four	528
Expected Benefit Payments, Year Five	492
Expected Benefit Payments, Thereafter	$ 2,043