Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Revenue	$ 2,453,038	$ 2,540,016	$ 2,683,298
Cost of sales, including warehousing, distribution and occupancy	1,652,991	1,679,897	1,698,655
Gross profit	800,047	860,119	984,643
Selling, general, and administrative	603,561	575,218	567,296
Gains on refranchising	(384)	(19,112)	(7,580)
Long-lived asset impairments (Note 5)	457,794	476,553	28,333
Other (income) loss, net	(511)	407	3,487
Operating (loss) income	(260,413)	(172,947)	393,107
Interest expense, net (Note 7)	64,221	60,443	50,936
Gain on convertible debt and debt refinancing costs (Note 7)	(10,996)	0	0
(Loss) income before income taxes	(313,638)	(233,390)	342,171
Income tax (benefit) expense (Note 4)	(164,787)	52,860	122,872
Net (loss) income	$ (148,851)	$ (286,250)	$ 219,299
(Loss) earnings per share (Note 13):
Basic (in USD per share)	$ (2.16)	$ (4.12)	$ 2.61
Diluted (in USD per share)	$ (2.16)	$ (4.12)	$ 2.60
Weighted average common shares outstanding (Note 13):
Basic (in shares)	68,789	69,409	83,927
Diluted (in shares)	68,789	69,409	84,186
Dividends declared per share (in USD per share)	$ 0	$ 0.80	$ 0.72