BASIS OF PRESENTATION - Recently Adopted Accounting Pronouncements (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings	$ 554,797		$ 554,797		$ 543,814
Balance Sheet [Abstract]
Inventory	489,639		489,639		485,732
Prepaid and other current assets	76,536		76,536		66,648
Total current assets	731,474		731,474		743,031
Assets	1,479,587		1,479,587		1,519,763
Deferred revenue and other current liabilities	121,475		121,475		114,081
Total current liabilities	485,055		485,055		267,099
Deferred income taxes	43,090		43,090		56,060
Other long-term liabilities	81,479		81,479		85,502
Total long-term liabilities	1,165,215		1,165,215		1,438,585
Total liabilities	1,650,270		1,650,270		1,705,684
Retained earnings	554,797		554,797		543,814
Total stockholders’ deficit	(170,683)	$ (45,755)	(170,683)	$ (45,755)	(185,921)	$ (117,563)
Total liabilities and stockholders’ deficit	1,479,587		1,479,587		1,519,763
Income Statement [Abstract]
Revenue	580,185	612,953	1,805,662	1,918,139
Cost of sales	395,483	411,661	1,206,351	1,277,202
Gross profit	184,702	201,292	599,311	640,937
SG&A	149,903	156,051	469,164	481,618
Long-lived asset impairments	14,600	3,900
Other loss (income), net	282	1,579	357	(40)
Operating income	19,961	39,801	115,234	136,142
Interest expense, net	35,732	16,339	90,448	48,300
(Loss) income before income taxes	(15,771)	23,462	8,046	87,842
Income tax expense (benefit)	(7,181)	2,406	(2,895)	25,398
Net (loss) income	$ (8,590)	$ 21,056	$ 10,941	$ 62,444
Earnings (loss) per share:
Basic (in dollars per share)	$ (0.10)	$ 0.31	$ 0.13	$ 0.91
Diluted (in dollars per share)	$ (0.10)	$ 0.31	$ 0.13	$ 0.91
Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue unaffected by ASU			90.00%
Income Statement [Abstract]
Revenue		$ 612,953		$ 1,918,139
Cost of sales		411,661		1,277,202
Gross profit		201,292		640,937
SG&A		156,051		481,618
Long-lived asset impairments		3,861		23,217
Other loss (income), net		1,579		(40)
Operating income		39,801		136,142
Interest expense, net		16,339		48,300
(Loss) income before income taxes		23,462		87,842
Income tax expense (benefit)		2,406		25,398
Net (loss) income		$ 21,056		$ 62,444
Earnings (loss) per share:
Basic (in dollars per share)		$ 0.31		$ 0.91
Diluted (in dollars per share)		$ 0.31		$ 0.91
As Previously Reported | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings					567,741
Balance Sheet [Abstract]
Inventory					506,858
Prepaid and other current assets					42,320
Total current assets					739,829
Assets					1,516,561
Deferred revenue and other current liabilities					108,672
Total current liabilities					261,690
Deferred income taxes					64,121
Other long-term liabilities					55,721
Total long-term liabilities					1,416,865
Total liabilities					1,678,555
Retained earnings					567,741
Total stockholders’ deficit					(161,994)
Total liabilities and stockholders’ deficit					1,516,561
Income Statement [Abstract]
Revenue		$ 609,469		$ 1,895,301
Cost of sales		412,663		1,272,801
Gross profit		196,806		622,500
SG&A		150,961		465,575
Long-lived asset impairments		3,861		23,217
Other loss (income), net		1,539		(110)
Operating income		40,445		133,818
Interest expense, net		16,339		48,300
(Loss) income before income taxes		24,106		85,518
Income tax expense (benefit)		2,643		24,544
Net (loss) income		$ 21,463		$ 60,974
Earnings (loss) per share:
Basic (in dollars per share)		$ 0.31		$ 0.89
Diluted (in dollars per share)		$ 0.31		$ 0.89
Adjustments | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings					(23,927)		$ (23,000)
Balance Sheet [Abstract]
Inventory					(21,126)
Prepaid and other current assets					24,328
Total current assets					3,202
Assets					3,202
Deferred revenue and other current liabilities					5,409
Total current liabilities					5,409
Deferred income taxes					(8,061)
Other long-term liabilities					29,781
Total long-term liabilities					21,720
Total liabilities					27,129
Retained earnings					(23,927)		$ (23,000)
Total stockholders’ deficit					(23,927)
Total liabilities and stockholders’ deficit					3,202
Income Statement [Abstract]
Revenue		$ 3,484		$ 22,838
Cost of sales		(1,002)		4,401
Gross profit		4,486		18,437
SG&A		5,090		16,043
Long-lived asset impairments		0		0
Other loss (income), net		40		70
Operating income		(644)		2,324
Interest expense, net		0		0
(Loss) income before income taxes		(644)		2,324
Income tax expense (benefit)		(237)		854
Net (loss) income		$ (407)		$ 1,470
Earnings (loss) per share:
Basic (in dollars per share)		$ 0.00		$ 0.02
Diluted (in dollars per share)		$ 0.00		$ 0.02
Adjustments | Franchise Fees | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings					(26,322)
Balance Sheet [Abstract]
Inventory					0
Prepaid and other current assets					0
Total current assets					0
Assets					0
Deferred revenue and other current liabilities					5,409
Total current liabilities					5,409
Deferred income taxes					(8,868)
Other long-term liabilities					29,781
Total long-term liabilities					20,913
Total liabilities					26,322
Retained earnings					(26,322)
Total stockholders’ deficit					(26,322)
Total liabilities and stockholders’ deficit					0
Income Statement [Abstract]
Revenue		$ (360)		$ 1,976
Cost of sales		0		0
Gross profit		(360)		1,976
SG&A		0		0
Long-lived asset impairments		0		0
Other loss (income), net		40		70
Operating income		(400)		1,906
Interest expense, net		0		0
(Loss) income before income taxes		(400)		1,906
Income tax expense (benefit)		(146)		701
Net (loss) income		$ (254)		$ 1,205
Earnings (loss) per share:
Basic (in dollars per share)		$ 0.00		$ 0.02
Diluted (in dollars per share)		$ 0.00		$ 0.02
Adjustments | Specialty Manufacturing | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings					2,395
Balance Sheet [Abstract]
Inventory					(21,126)
Prepaid and other current assets					24,328
Total current assets					3,202
Assets					3,202
Deferred revenue and other current liabilities					0
Total current liabilities					0
Deferred income taxes					807
Other long-term liabilities					0
Total long-term liabilities					807
Total liabilities					807
Retained earnings					2,395
Total stockholders’ deficit					2,395
Total liabilities and stockholders’ deficit					$ 3,202
Income Statement [Abstract]
Revenue		$ (1,925)		$ 2,703
Cost of sales		(1,681)		2,285
Gross profit		(244)		418
SG&A		0		0
Long-lived asset impairments		0		0
Other loss (income), net		0		0
Operating income		(244)		418
Interest expense, net		0		0
(Loss) income before income taxes		(244)		418
Income tax expense (benefit)		(91)		153
Net (loss) income		$ (153)		$ 265
Earnings (loss) per share:
Basic (in dollars per share)		$ 0.00		$ 0.00
Diluted (in dollars per share)		$ 0.00		$ 0.00
Adjustments | Cooperative advertising and other franchise support fees | Accounting Standards Update 2014-09
Income Statement [Abstract]
Revenue		$ 5,769		$ 18,159
Cost of sales		679		2,116
Gross profit		5,090		16,043
SG&A		5,090		16,043
Long-lived asset impairments		0		0
Other loss (income), net		0		0
Operating income		0		0
Interest expense, net		0		0
(Loss) income before income taxes		0		0
Income tax expense (benefit)		0		0
Net (loss) income		$ 0		$ 0
Earnings (loss) per share:
Basic (in dollars per share)		$ 0.00		$ 0.00
Diluted (in dollars per share)		$ 0.00		$ 0.00