Long-Lived Asset Impairment Charges (Tables)

12 Months Ended

Dec. 31, 2017

Long-lived Asset Impairment Charges

Summarizes the non-financial assets recorded at fair value on a non-recurring

	Carrying value at December 31, 2017		Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2 )		Significant unobservable inputs (Level 3 )		Loss for twelve months ended December 31, 2017
	(in thousands)
Long-lived assets held and used	$	815	$	—	$	—	$	815	$	1,028
Long-lived assets held for sale		11,202		—		—		11,202		4,023
Total nonrecurring for value measurements	$	12,017	$	—	$	—	$	12,017	$	5,051

	Carrying value at December 31, 2016		Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2 )		Significant unobservable inputs (Level 3 )		Loss for twelve months ended December 31, 2016
	(in thousands)
Long lived assets held and used	$	7,110	$	—	$	7,110	$	—	$	12,264
Long lived assets held for sale		14,761		—		14,761		—		14,290
Total nonrecurring for value measurements	$	21,871	$	—	$	21,871	$	—	$	26,554