FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Dec. 31, 2017

Financial Instruments, Owned, at Fair Value [Abstract]

Carrying Amount and Estimated Fair Values of the Term Loan Facility and Notes

The carrying value and estimated fair value of the Term Loan Facility, net of discount, and Notes (net of the equity component classified in stockholders' equity and discount) were as follows:

	December 31, 2017				December 31, 2016
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(in thousands)
Term Loan Facility	$	1,130,320	$	930,592	$	1,170,486	$	1,100,257
Notes	167,988		85,044		245,273		185,794