Acquisitions (Tables)

9 Months Ended

Sep. 30, 2014

Schedule of allocated purchase price paid to fair value of acquired net assets for acquisitions



	2014 Acquisitions			2013 Acquisitions
Accounts receivable	$	67,262		$	22,666
Other current assets	6,610			922
Property and equipment	31,151			14,392
Goodwill	149,592			78,646
Customer relationship intangible assets	39,000			19,727
Other noncurrent assets	242			12
Accounts payable and other liabilities	(61,831		)	(35,706		)
Total	$	232,026		$	100,659

2013 [Member]

Business Acquisition [Line Items]

Business Acquisition, Pro Forma Information [Table Text Block]

The following supplemental unaudited pro forma financial information of the Company for the three and nine months ended September 30, 2013 includes the results of operations for the 2013 acquisitions, in the aggregate, as if the acquisitions had been completed on January 1, 2012 (in thousands):



	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2013		2013
Revenues	$	377,327	$	1,099,439
Net income	$	13,199	$	37,923

2014 [Member]

Business Acquisition [Line Items]

Business Acquisition, Pro Forma Information [Table Text Block]

The following supplemental unaudited pro forma financial information of the Company for the three and nine months ended September 30, 2014 and 2013 includes the results of operations for the 2014 acquisitions, in the aggregate, as if the acquisitions had been completed on January 1, 2013 (in thousands).



	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2014		2013		2014		2013
Revenues	$	529,169	$	469,972	$	1,546,672	$	1,288,597
Net income	$	14,698	$	15,509	$	44,452	$	41,269