Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Cash Flow Hedges, beginning balance	$ 35	[1]
Cash Flow Hedges, other comprehensive income/(loss) before reclassifications	272	[1]
Cash Flow Hedges, amounts reclassified from OCI	(25)	[1]
Cash Flow Hedges, ending balance	282	[1]
Pension Items, beginning balance	(12,062)	[1]
Pension Items, other comprehensive income/(loss) before reclassifications	0	[1]
Pension Items, amounts reclassified from OCI	528	[1]
Pension Items, ending balance	(11,534)	[1]
Foreign Currency Items, beginning balance	7,442
Foreign Currency Items, other comprehensive income/(loss) before reclassifications	(18,828)
Foreign Currency Items, amounts reclassified from OCI	0
Foreign Currency Items, ending balance	(11,386)
Accumulated Other Comprehensive Income, beginning balance	(4,585)
Other Comprehensive income (loss) before reclassification Adjustments Net Of Tax	(18,556)
Amounts Reclassified from OCI	503
Accumulated Other Comprehensive Income, ending balance	(22,638)
Amortization of pension expense included in selling and administrative expense [Abstract]
Selling, General and Administrative Expense	80,799		68,843
Total net of tax	528	[1]
Amounts reclassified from accumulated other comprehensive income [Member]
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Pension Items, amounts reclassified from OCI	528
Amortization of pension expense included in selling and administrative expense [Abstract]
Total before income taxes	843
Tax benefit	(315)
Total net of tax	528
Actuarial Loss [Member] | Amounts reclassified from accumulated other comprehensive income [Member]
Amortization of pension expense included in selling and administrative expense [Abstract]
Selling, General and Administrative Expense	800
Prior Service Cost [Member] | Amounts reclassified from accumulated other comprehensive income [Member]
Amortization of pension expense included in selling and administrative expense [Abstract]
Selling, General and Administrative Expense	$ 43

[1] Cash Flow Hedges and Pension Items are net of tax.