Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Line Items]
Tax loss carryforwards	$ 77,500
Unrepatriated foreign earnings	700
U.S. [Member]
Income Tax Disclosure [Line Items]
Total deferred tax assets	73,229	88,694
Total deferred tax liabilities	22,849	16,885
Net deferred tax asset	50,380	71,809
U.S. [Member] | Current Assets [Member]
Income Tax Disclosure [Line Items]
Accounts receivable	1,526	1,733
Inventories	1,432	1,589
Tax credit carryforwards	1,000	3,000
Other	2,867	3,413
Deferred tax assets before valuation allowance	6,825	9,735
Less: valuation allowance
Total deferred tax assets	6,825	9,735
U.S. [Member] | Noncurrent Assets [Member]
Income Tax Disclosure [Line Items]
Deferred compensation	5,794	5,668
Depreciation and amortization	4,289	5,004
Postretirement benefits	28,038	38,632
Tax loss carryforwards	1,457	1,032
Tax credit carryforwards	23,992	24,504
Other	2,834	4,119
Deferred tax assets before valuation allowance	66,404	78,959
Less: valuation allowance
Total deferred tax assets	66,404	78,959
U.S. [Member] | Current Liabilities [Member]
Income Tax Disclosure [Line Items]
Unrepatriated foreign earnings	667	1,521
Inventories
Other
Total deferred tax liabilities	667	1,521
U.S. [Member] | Noncurrent Liabilities [Member]
Income Tax Disclosure [Line Items]
Depreciation and amortization	13,169	15,296
Postretirement benefits
Deferred gain	9,013
Branch losses subject to recapture
Other		68
Total deferred tax liabilities	22,182	15,364
Non-U.S. [Member]
Income Tax Disclosure [Line Items]
Total deferred tax assets	43,829	39,035
Total deferred tax liabilities	27,696	31,659
Net deferred tax asset	16,133	7,376
Non-U.S. [Member] | Current Assets [Member]
Income Tax Disclosure [Line Items]
Accounts receivable	2,397	2,437
Inventories	2,411	2,052
Tax credit carryforwards
Other	3,058	6,370
Deferred tax assets before valuation allowance	7,866	10,859
Less: valuation allowance	(818)
Total deferred tax assets	7,048	10,859
Non-U.S. [Member] | Noncurrent Assets [Member]
Income Tax Disclosure [Line Items]
Deferred compensation
Depreciation and amortization	3,505	2,958
Postretirement benefits	4,540	4,480
Tax loss carryforwards	76,026	78,968
Tax credit carryforwards	1,508	1,561
Other	371	557
Deferred tax assets before valuation allowance	85,950	88,524
Less: valuation allowance	(49,169)	(60,348)
Total deferred tax assets	36,781	28,176
Non-U.S. [Member] | Current Liabilities [Member]
Income Tax Disclosure [Line Items]
Unrepatriated foreign earnings
Inventories	1,366	1,383
Other	1,822	12
Total deferred tax liabilities	3,188	1,395
Non-U.S. [Member] | Noncurrent Liabilities [Member]
Income Tax Disclosure [Line Items]
Depreciation and amortization	8,357	10,106
Postretirement benefits	1,377	4,726
Deferred gain
Branch losses subject to recapture	12,380	12,959
Other	2,394	2,473
Total deferred tax liabilities	$ 24,508	$ 30,264