Other Comprehensive Income (Loss) (Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses	$ 121,706	$ 129,044	$ 245,990	$ 259,629
Interest expense	10,584	10,405	21,181	20,862
Provision for income taxes	(28,913)	(29,769)	(55,842)	(59,443)
Reclassification out of Accumulated Other Comprehensive Income | Pension and Other Postretirement Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses	1,215	798	2,390	1,477
Total before tax	1,215	798	2,390	1,477
Provision for income taxes	(395)	(281)	(790)	(521)
Total net of tax	820	517	1,600	956
Reclassification out of Accumulated Other Comprehensive Income | Derivatives
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	1,767	1,817	3,539	3,637
Interest expense	1,767	1,817	3,539	3,637
Provision for income taxes	(641)	(662)	(1,283)	(1,325)
Total net of tax	$ 1,126	$ 1,155	$ 2,256	$ 2,312