GEOGRAPHIC INFORMATION - Net Sales and Long Lived Assets by Region (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 136,436	$ 126,205	$ 151,537	$ 126,788	$ 147,778	$ 118,398	$ 122,432	$ 104,168	$ 540,966	$ 492,776	$ 404,170
Long - Lived Assets	51,094				43,669				51,094	43,669	42,477
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									467,161	399,434	335,969
Long - Lived Assets	48,589				41,176				48,589	41,176	39,832
Foreign
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									73,805	93,342	68,201
Long - Lived Assets	$ 2,505				$ 2,493				$ 2,505	$ 2,493	$ 2,645