FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2017

Schedule of assets and liabilities measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis are summarized as follows (in thousands):



	Level 1		Level 2		Level 3		Total
June 30, 2017
Foreign currency contracts (note 8)	$	—	$	—	$	—	$	—
Asset retirement obligations(1)	—		—		2,913		2,913

December 31, 2016
Foreign currency contracts (note 8)	—		195		—		195
Asset retirement obligations(1)	—		—		2,810		2,810


(1)	We calculate the fair value of asset retirement obligations by discounting the estimated amount using the current Treasury bill rate adjusted for our credit risk. The balance is included in “Other long-term liabilities,” in the accompanying unaudited consolidated balance sheets.

Schedule of changes in asset retirement obligations

The following table provides a summary of changes in our Level 3 asset retirement obligations for the six months ended June 30, 2017 (in thousands):



Balance, January 1, 2017	$	2,810
Accretion	103
Balance, June 30, 2017	$	2,913

Schedule of fair value of term loan and revolving credit facility

The fair values of our other Level 3 debt liabilities, estimated using a discounted cash flow analysis based on incremental borrowing rates for similar types of borrowing arrangements, are as follows (in thousands):



	June 30, 2017				December 31, 2016
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Term loan	$	300,000	$	304,500	$	291,000	$	267,700
Revolving credit facility	—		—		35,500		32,600