CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 24, 2010	Sep. 30, 2011	Sep. 24, 2010
Revenue from services	$ 371,379	$ 312,769	$ 965,857	$ 837,424
Cost of services	271,528	228,181	710,644	615,882
Gross profit	99,851	84,588	255,213	221,542
Selling, general and administrative expenses	73,235	64,442	206,071	186,926
Depreciation and amortization	4,205	3,874	11,989	11,888
Income from operations	22,411	16,272	37,153	22,728
Interest expense	(371)	(439)	(1,059)	(1,169)
Interest and other Income	694	583	1,857	1,832
Interest and other income, net	323	144	798	663
Income before tax expense	22,734	16,416	37,951	23,391
Income tax expense	8,821	6,197	14,724	7,511
Net income	$ 13,913	$ 10,219	$ 23,227	$ 15,880
Net income per common share:
Basic	$ 0.33	$ 0.24	$ 0.54	$ 0.37
Diluted	$ 0.33	$ 0.23	$ 0.54	$ 0.37
Weighted average shares outstanding:
Basic	41,612	43,269	42,813	43,196
Diluted	41,958	43,509	43,176	43,456