Business Combinations (Tables)

12 Months Ended

Dec. 31, 2012

Business Combinations [Abstract]

Summary of purchase price allocation

Cash	$	1,112
Contract receivables		12,006
Other current and non-current assets		205
Customer-related intangibles		14,726
Marketing-related intangibles		484
Goodwill		74,379
Property and equipment		1,121
Total Assets		104,033
Accounts payable and other		980
Accrued salaries and benefits		298
Billings in excess of costs		851
Total Liabilities		2,129
Net Assets	$	101,904

Unaudited condensed pro forma information

	2011		2010
Revenue	$	898,528	$	811,316
Operating income		63,061		48,778
Net income		36,309		27,021
Earnings per share:
Basic earnings per share	$	1.84	$	1.39
Diluted earnings per share	$	1.82	$	1.38