CONSOLIDATED STATEMENTS OF OPERATIONS & COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 02, 2017	Mar. 25, 2016
Revenue from services	$ 568,244	$ 645,980
Cost of services	428,815	495,468
Gross profit	139,429	150,512
Selling, general and administrative expense	121,844	130,624
Depreciation and amortization	11,174	11,289
Income from operations	6,411	8,599
Interest expense	(1,232)	(1,969)
Interest and other income	1,306	950
Interest and other income (expense), net	74	(1,019)
Income before tax expense	6,485	7,580
Income tax expense	1,811	612
Net income	$ 4,674	$ 6,968
Net income per common share:
Basic (in dollars per share)	$ 0.11	$ 0.17
Diluted (in dollars per share)	$ 0.11	$ 0.17
Weighted average shares outstanding:
Basic (in shares)	41,637	41,502
Diluted (in shares)	41,937	41,798
Other comprehensive income:
Total other comprehensive income, net of tax	$ 2,537	$ 2,477
Comprehensive income	7,211	9,445
Foreign currency translation adjustment
Other comprehensive income:
Foreign currency translation adjustment	1,800	2,401
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Other comprehensive income:
Unrealized gain on investments, net of tax	$ 737	$ 76