Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Measurements

Schedule of fair value hierarchy of assets and liabilities measured on recurring basis

	Assets and (Liabilities) at Fair Value
	December 31, 2017								December 31, 2016
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
	(in thousands)								(in thousands)
Derivatives	$	—	$	1,129	$	—	$	1,129	$	—	$	69	$	—	$	69
Total	$	—	$	1,129	$	—	$	1,129	$	—	$	69	$	—	$	69

Schedule of fair value hierarchy of assets measured on nonrecurring basis and gain (losses) recorded

	Assets at Fair Value																Total Losses
	December 31, 2017								December 31, 2016								December 31,
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total		2017		2016
	(in thousands)																(in thousands)
Equipment held for lease	$	—	$	23,255	$	—	$	23,255	$	—	$	1,196	$	—	$	1,196	$	(12,879)	$	(3,674)
Equipment held for sale		—		39,261		—		39,261		—		8,976		—		8,976		(8,708)		(5,365)
Spare parts inventory		—		5,336		—		5,336		—		1,538		—		1,538		(3,343)		(475)
Total	$	—	$	67,852	$	—	$	67,852	$	—	$	11,710	$	—	$	11,710	$	(24,930)	$	(9,514)