Other Comprehensive Income (Loss) (Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses	$ 130,585	$ 117,285
Interest expense	10,457	10,557
Provision for income taxes	(29,674)	(24,134)
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	679	1,935
Total before tax	679	1,935
Provision for income taxes	(240)	(662)
Total net of tax	439	1,273
Reclassification out of Accumulated Other Comprehensive Income [Member] | Derivatives [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	1,820	1,872
Total before tax	1,820	1,872
Provision for income taxes	(663)	(682)
Total net of tax	$ 1,157	$ 1,190