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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 28, 2012 | Sep. 30, 2011
Cash flows from operating activities: |  |
Net income | $ 26,214 | $ 23,227
Adjustments to reconcile net income to net cash from operating activities: |  |
Depreciation and amortization | 14,156 | 11,989
Provision for doubtful accounts | 4,305 | 4,424
Stock-based compensation | 6,268 | 5,583
Deferred income taxes | 1,191 | 899
Other operating activities | 1,196 | (471)
Changes in operating assets and liabilities: |  |
Accounts receivable | (33,528) | (70,116)
Income taxes | 2,206 | 6,950
Other assets | (592) | 1,720
Accounts payable and other accrued expenses | (2,906) | 19,634
Accrued wages and benefits | 8,248 | 12,033
Workers' compensation claims reserve | 5,930 | 735
Other liabilities | 280 | (144)
Net cash provided by operating activities | 32,968 | 16,463
Cash flows from investing activities: |  |
Capital expenditures | (13,930) | (6,251)
Change in restricted cash and cash equivalents | 487 | 65,104
Purchases of restricted investments | (18,153) | (87,768)
Maturities of restricted investments | 14,418 | 6,193
Other | (250) | (6,800)
Net cash used in investing activities | (17,428) | (29,522)
Cash flows from financing activities: |  |
Purchases and retirement of common stock | (4,386) | (50,143)
Net proceeds from stock option exercises and employee purchase plans | 3,806 | 874
Common stock repurchases for taxes upon vesting of restricted stock | (2,076) | (1,692)
Payments on other liabilities | (3,987) | (302)
Other | 764 | 674
Net cash used in financing activities | (5,879) | (50,589)
Effect of exchange rates on cash | 369 | (455)
Net change in cash and cash equivalents | 10,030 | (64,103)
CASH AND CASH EQUIVALENTS, beginning of period | 109,311 | 163,153
CASH AND CASH EQUIVALENTS, end of period | $ 119,341 | $ 99,050

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