Other Comprehensive Income (Loss) (Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses	$ 129,044	$ 123,290	$ 259,629	$ 240,575
Interest expense	10,405	10,597	20,862	21,154
Provision for income taxes	(29,769)	(25,828)	(59,443)	(49,962)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension and Other Postretirement Plans [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses	798	1,521	1,477	3,456
Total before tax	798	1,521	1,477	3,456
Provision for income taxes	(281)	(583)	(521)	(1,245)
Total net of tax	517	938	956	2,211
Reclassification out of Accumulated Other Comprehensive Income [Member] | Derivatives [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	1,817	1,867	3,637	3,740
Total before tax	1,817	1,867	3,637	3,740
Provision for income taxes	(662)	(680)	(1,325)	(1,363)
Total net of tax	$ 1,155	$ 1,187	$ 2,312	$ 2,377