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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Cash Flows from Operating Activities |  |  |
Net income | $ 71,132 | $ 54,959 | $ 68,938
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Provision for credit losses | 10,912 | 4,062 | 624
Deferred income taxes | 8,816 | (1,865) | (123)
Non-cash equity compensation | 13,230 | 17,555 | 15,818
Depreciation and amortization | 31,970 | 33,748 | 28,182
Facilities consolidation reserve | (302) | (288) | (274)
Amortization of debt issuance costs | 617 | 710 | 507
Impairment of long-lived assets | 7,901 | 3,090 | 1,728
Other adjustments, net | 1,099 | 964 | 181
Changes in operating assets and liabilities, net of the effect of acquisitions: |  |  |
Net contract assets and liabilities | 3,069 | 6,064 | (11,963)
Contract receivables | (19,021) | 54,384 | (31,300)
Prepaid expenses and other assets | 4,529 | (5,410) | 1,997
Operating lease assets and liabilities, net | (5,481) | (2,307) | (1,247)
Accounts payable | 13,479 | (51,177) | 31,949
Accrued salaries and benefits | (5,616) | 26,810 | 8,012
Accrued subcontractors and other direct costs | (38,575) | 32,544 | (12,293)
Accrued expenses and other current liabilities | 26,697 | (18,198) | (4,951)
Income tax receivable and payable | (12,802) | 5,375 | (4,489)
Other liabilities | (1,449) | 12,125 | 144
Net Cash Provided by Operating Activities | 110,205 | 173,145 | 91,440
Cash Flows from Investing Activities |  |  |
Capital expenditures for property and equipment and capitalized software | (19,932) | (17,683) | (26,901)
Payments for business acquisitions, net of cash acquired | (174,549) | (253,265) | (3,569)
Net Cash Used in Investing Activities | (194,481) | (270,948) | (30,470)
Cash Flows from Financing Activities |  |  |
Advances from working capital facilities | 881,037 | 1,020,451 | 686,830
Payments on working capital facilities | (773,264) | (870,114) | (721,809)
Payments on capital expenditure obligations |  | (1,712) | (1,621)
Receipt of restricted contract funds | 264,214 | 65,694 |
Payment of restricted contract funds | (319,990) | (106) |
Debt issue costs |  | (2,094) |
Proceeds from exercise of options | 2,848 | 37 | 2,914
Dividends paid | (10,565) | (10,551) | (10,540)
Net payments for stockholder issuances and buybacks | (20,040) | (29,726) | (23,414)
Payments on business acquisition liabilities | (1,007) | (1,924) |
Net Cash Provided by (Used in) Financing Activities | 23,233 | 169,955 | (67,640)
Effect of Exchange Rate Changes on Cash, Cash Equivalents, and Restricted Cash | (511) | 3,353 | 166
(Decrease) Increase in Cash, Cash Equivalents, and Restricted Cash | (61,554) | 75,505 | (6,504)
Cash, Cash Equivalents, and Restricted Cash, Beginning of Period | 81,987 | 6,482 | 12,986
Cash, Cash Equivalents, and Restricted Cash, End of Period | 20,433 | 81,987 | 6,482
Supplemental disclosure of cash flow information: |  |  |
Interest | 10,331 | 14,337 | 10,424
Income taxes | 34,132 | 15,954 | $ 26,595
Non-cash investing and financing transactions: |  |  |
Share repurchases transacted but not settled and paid | $ 552 |  |
Tenant improvements funded by lessor |  | 3,124 |
Exercise of options receivable from shareholders |  | $ 2,615 |

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