Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2015

Supplemental Cash Flow Elements [Abstract]

Supplemental cash flow information

Supplemental cash flow information was as follows:

	Three months ended March 31,
	2015		2014
	(In thousands)
Interest paid	$	38,381	41,180
Income taxes paid	3,590		1,534
Changes in accounts payable related to purchases of revenue earning equipment	99,972		16,918
Operating and revenue earning equipment acquired under capital leases	—		2,245