LONG-LIVED AND INTANGIBLE ASSETS AND GOODWILL - Intangibles (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016 USD ($) item	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) item	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Intangible assets
Store impairment charges	$ 0		$ 279,000
Gross Amount	92,237,000		92,237,000		$ 45,837,000
Definite, Accumulated Amortization	7,272,000		7,272,000		6,014,000
Definite, Net Amount	26,628,000		26,628,000
Net Amount	84,965,000		84,965,000		39,823,000
Amortization expense related to the intangible assets	683,000	$ 330,000	1,258,000	$ 660,000
Estimated amortization expense
2016 Remainder of the year	1,365,000		1,365,000
2017	2,730,000		2,730,000
2018	2,730,000		2,730,000
2019	2,730,000		2,730,000
2020	2,730,000		2,730,000
Thereafter	14,343,000		14,343,000
Total	$ 26,628,000		$ 26,628,000
R G Parent, LLC
Intangible assets
Number of full price retail stores on which impairment charge was recorded | item	1		1
Trade names.
Intangible assets
Indefinite, Net Amount	$ 58,337,000		$ 58,337,000		$ 26,037,000
Customer relationships
Intangible assets
Amortization period					15 years
Definite, Gross Amount	33,900,000		33,900,000		$ 19,800,000
Definite, Accumulated Amortization	7,272,000		7,272,000		6,014,000
Definite, Net Amount	26,628,000		26,628,000		13,786,000
Estimated amortization expense
Total	$ 26,628,000		$ 26,628,000		$ 13,786,000
Minimum | Customer relationships
Intangible assets
Amortization period			13 years
Maximum | Customer relationships
Intangible assets
Amortization period			15 years