Acquisitions (Tables)

12 Months Ended

Dec. 31, 2012

Business Combinations [Abstract]

Schedule of Purchase Price Allocation

The following tables summarize (in thousands) the purchase price allocations for the acquisitions of Apex, which is subject to finalization during the measurement period and HCP and Valesta:

	2012 Acquisition		2011 Acquisitions
	Apex		HCP		Valesta		Total
Current assets	$	169,844	$	3,950	$	6,332	$	10,282
Property and equipment	902		123		299		422
Goodwill	266,788		14,398		17,911		32,309
Identifiable intangible assets	251,555		1,784		5,679		7,463
Other	494		13		26		39
Total assets acquired	$	689,583	$	20,268	$	30,247	$	50,515
Current liabilities	$	77,905	$	1,070	$	4,774	$	5,844
Other	850		49		1,814		1,863
Total liabilities assumed	78,755		1,119		6,588		7,707
Total purchase price	$	610,828	$	19,149	$	23,659	$	42,808

Schedule of Intangible Assets Acquired as Part of Business Combinations

The following table summarizes (in thousands) the allocation of the purchase price among the identifiable intangible assets for the acquisition of Apex, HCP and Valesta:

		Identifiable Intangible Asset Value
		2012 Acquisition		2011 Acquisitions
	Useful life	Apex		HCP		Valesta		Total
Contractor relations	2 – 5 years	$	10,589	$	814	$	266	$	1,080
Customer relations	2 – 10 years	92,147		950		2,395		3,345
Non-compete agreements	2 – 7 years	2,076		20		440		460
Trademarks	indefinite	146,743		—		2,578		2,578
		$	251,555	$	1,784	$	5,679	$	7,463

Schedule of Pro Forma Consolidated Results of Operations

The pro forma financial information is not necessarily indicative of the operating results that would have occurred if the acquisition had been consummated as of the date indicated, nor are they necessarily indicative of future operating results.

	2012		2011
Revenues	$	1,459,762	$	1,266,523
Operating income	$	113,738	$	64,292
Income from continuing operations	$	51,373	$	23,574
Net income	$	55,615	$	26,109
Basic earnings per share:
Income from continuing operations	$	0.99	$	0.46
Net income	$	1.07	$	0.51
Diluted earnings per share:
Income from continuing operations	$	0.97	$	0.45
Net income	$	1.05	$	0.50
Weighted average number of shares outstanding	52,103		51,180
Weighted average number of shares and dilutive shares outstanding	53,190		52,062