Accumulated Other Comprehensive Income (Loss) Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Selling, general and administrative expenses	$ 1,008,744	$ 965,134	$ 935,132
Tax (benefit) expense	60,186	61,009	59,125
Total reclassifications for the period, net of tax	(93,313)	(91,332)	$ (87,686)
Reclassification out of AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Selling, general and administrative expenses	18,115	19,343
Tax (benefit) expense	(7,047)	(7,524)
Total reclassifications for the period, net of tax	11,068	11,819
Reclassification out of AOCI | Actuarial Losses Recognized
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Selling, general and administrative expenses	19,873	21,072
Tax (benefit) expense	(7,731)	(8,197)
Total reclassifications for the period, net of tax	12,142	12,875
Reclassification out of AOCI | Prior Service Costs Recognized
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Selling, general and administrative expenses	(1,758)	(1,729)
Tax (benefit) expense	684	673
Total reclassifications for the period, net of tax	$ (1,074)	$ (1,056)