Asset Impairment Charges (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Fair Value Non-Financial Assets Measured and Recorded on a Non-Recurring Basis

The table below summarizes the non-financial assets that were measured and recorded at fair value on a non-recurring basis as of December 31, 2016 and loss recorded during the twelve months ended December 31, 2016 on those assets:

	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

The table below summarizes the non-financial assets that were measured and recorded at fair value on a non-recurring basis as of December 31, 2015 and loss recorded during the twelve months ended December 31, 2015 on those assets:

	Carrying value at December 31, 2015		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, 2015
	(in thousands)
Long lived assets held and used	$	57,569	$	—	$	57,569	$	—	$	39,597