GEOGRAPHIC INFORMATION - Net Sales and Long Lived Assets by Region (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 122,432	$ 105,834	$ 226,600	$ 190,784
Long Lived Assets	42,581		42,581		42,477
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	102,895	89,843	185,664	162,111
Long Lived Assets	39,918		39,918		39,832
Foreign
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	19,537	15,991	40,936	28,673
Long Lived Assets	$ 2,663		$ 2,663		$ 2,645