Supplemental Cash Flow Information

3 Months Ended

Mar. 31, 2014

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

Supplemental Cash Flow Information

	Three Months Ended March 31,
	2014		2013
Supplemental disclosure of cash flow information:
Interest paid	$	126,540	$	99,871
Income taxes paid	7,400		2,645
Supplemental disclosure of non-cash financing activities:
Increase (decrease) in liabilities for purchases of property and equipment	430		(5,134		)