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Cash Flow Information
12 Months Ended
Dec. 31, 2015
Supplemental Cash Flow Information [Abstract]  
Cash Flow Information
CASH FLOW INFORMATION
We had non-cash investing and financing activities primarily related to increases in property acquired under capital leases of $27.3 million during 2015, $11.6 million during 2014, and $18.0 million during 2013. We also had accrued purchases of property and equipment of $25.3 million at December 31, 2015, $16.3 million at December 31, 2014, and $28.1 million at December 31, 2013.
We made interest payments, including interest on vehicle inventory financing, of $135.3 million in 2015, $136.4 million in 2014, and $136.0 million in 2013. We made income tax payments, net of income tax refunds, of $278.8 million in 2015, $225.0 million in 2014, and $200.3 million in 2013.