Consolidated Statements of Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Revenue	$ 668,905	$ 681,266
Cost of sales, including warehousing, distribution and occupancy	433,060	431,833
Gross profit	235,845	249,433
Selling, general, and administrative	143,072	139,768
Gains on refranchising (Note 4)	(1,015)	(338)
Other (income) loss, net	(277)	398
Operating income	94,065	109,605
Interest expense, net	14,443	11,515
Income before income taxes	79,622	98,090
Income tax expense	28,807	34,820
Net income	$ 50,815	$ 63,270
Earnings per share:
Basic (in dollars per share)	$ 0.70	$ 0.72
Diluted (in dollars per share)	$ 0.69	$ 0.72
Weighted average common shares outstanding:
Basic (in shares)	73,078	87,865
Diluted (in shares)	73,373	88,105
Dividends declared per share: (in dollars per share)	$ 0.2	$ 0.18