Other Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Other Liabilities

Components of Other Liabilities

	December 31, 2017		December 31, 2016
	(In thousands)
Current portion of other long-term liabilities
Interest rate swap contracts	$	7,314	$	16,533
Asset retirement obligations		9,837		9,821
Deferred revenue		3,590		249
Other		10,629		1,634
Total current portion of other long-term liabilities	$	31,370	$	28,237
Noncurrent portion of other long-term liabilities
Acquisition-related contingent consideration	$	42,614	$	—
Interest rate swap contracts		3,547		14,456
Deferred revenue		2,063		1,698
Other		26,778		2,537
Total noncurrent portion of other long-term liabilities	$	75,002	$	18,691