Supplemental Cash Flow Information Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2016

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

The following table presents non-cash financing and investing activities and other cash flow information:

	Year ended December 31,
Non-cash financing and investing activities:	2016		2015		2014
Capital lease obligations	$	32,243	$	4,123	$	24,879
Non-cash extinguishment of senior notes	10,616		53,373		—
Non-cash acquisitions and related deferred taxes	—		297,821		—
Other cash flow information:
Interest paid	$	41,976	$	42,264	$	30,691
Income taxes paid	17,181		1,937		20,198