FINANCIAL INFORMATION New Accounting Pronouncements Adopted (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Net	$ 20,140	$ 21,582
Right of use assets	31,467	0
Accrued expenses and other current liabilities	36,531	37,547
Long-term lease liabilities	28,930	0
Other long-term liabilities	$ 5,081	10,302
Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Net		21,582
Right of use assets		0
Accrued expenses and other current liabilities		37,547
Long-term lease liabilities		0
Other long-term liabilities		10,302
Adjustments for New Accounting Pronouncement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Net		256
Right of use assets		37,749
Accrued expenses and other current liabilities		6,957
Long-term lease liabilities		35,694
Other long-term liabilities		(4,646)
Accounting Standards Update 2016-02 (Topic 842) As Adjusted [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Net		21,838
Right of use assets		37,749
Accrued expenses and other current liabilities		44,504
Long-term lease liabilities		35,694
Other long-term liabilities		$ 5,656