Income Taxes - Deferred Tax Balances (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current [Member]
Retirement benefits	$ 585	$ 614
Allowance for doubtful accounts	1,990	1,984
Insurance and litigation reserves	677	580
Postretirement benefits	0	0
Supplemental retirement benefits	0	0
Performance incentives	3,858	3,002
Equity-based compensation	351	349
Alternative minimum tax carryforward	0	0
Insurance settlement	6	10
Operating loss carryforward	0	0
Uncertain tax positions	0	0
Interest rate swaps and other	975	679
Deferred Tax Assets, Gross, Total	8,442	7,218
Valuation allowance	(924)	(710)
Total deferred income tax assets, net	7,518	6,508
Depreciation	0	0
Europe Pension and Other	0	0
Amortization and other	749	360
Total deferred income tax liabilities	749	360
Non Current [Member]
Retirement benefits	9,371	14,397
Allowance for doubtful accounts	0	0
Insurance and litigation reserves	126	260
Postretirement benefits	1,951	2,543
Supplemental retirement benefits	3,010	2,501
Performance incentives	686	520
Equity-based compensation	585	395
Alternative minimum tax carryforward	0	0
Insurance settlement	9,071	9,425
Operating loss carryforward	9,228	9,425
Uncertain tax positions	5,806	7,700
Interest rate swaps and other	888	1,039
Deferred Tax Assets, Gross, Total	40,722	48,205
Valuation allowance	(6,742)	(7,148)
Total deferred income tax assets, net	33,980	41,057
Depreciation	4,712	5,069
Europe Pension and Other	2,343	2,552
Amortization and other	8,595	9,146
Total deferred income tax liabilities	$ 15,650	$ 16,767