Supplemental Cash Flow Disclosure (Tables)

12 Months Ended

Dec. 31, 2015

Supplemental Cash Flow Elements [Abstract]

Schedule of Depreciation and Amortization Expense

Depreciation and amortization expense is comprised of the following (in thousands):

	Year Ended December 31,
	2015		2014		2013
Depreciation and amortization from continuing operations	$	114,452	$	115,819	$	119,624
Depreciation and amortization from discontinued operations	—		—		4,923
Total depreciation and amortization expense	$	114,452	$	115,819	$	124,547