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v3.21.1

UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Cash flows from operating activities: |  |
Net income | $ 19,928 | $ 9,932
Adjustments to reconcile net income to net cash flows provided by operating activities: |  |
Depreciation and amortization of property and equipment | 11,293 | 10,641
Amortization of intangible assets | 578 | 1,228
Stock-based compensation expense | 1,487 | 1,080
Deferred income taxes | (47) | 236
Gain on sale of property and equipment | (683) | (1,050)
Other non-cash items | 529 | (305)
Changes in operating assets and liabilities, net of acquisitions: |  |
Accounts receivable, net | 12,592 | 38,089
Contract assets, net | (6,991) | (7,467)
Receivable for insurance claims in excess of deductibles | 802 | (754)
Other assets | 15,314 | 5,195
Accounts payable | 29,198 | (18,091)
Contract liabilities | (18,087) | (4,697)
Accrued self insurance | (285) | (77)
Other liabilities | (6,238) | 1,283
Net cash flows provided by operating activities | 59,390 | 35,243
Cash flows from investing activities: |  |
Proceeds from sale of property and equipment | 651 | 870
Purchases of property and equipment | (7,031) | (9,138)
Net cash flows used in investing activities | (6,380) | (8,268)
Cash flows from financing activities: |  |
Net repayments under revolving lines of credit | 0 | (2,263)
Payment of principal obligations under equipment notes | 0 | (2,177)
Payment of principal obligations under finance leases | (273) | (312)
Proceeds from exercise of stock options | 110 | 82
Repurchase of common shares | (2,618) | (425)
Other financing activities | 12 | 23
Net cash flows used in financing activities | (2,769) | (5,072)
Effect of exchange rate changes on cash | 160 | (303)
Net increase in cash and cash equivalents | 50,401 | 21,600
Cash and cash equivalents: |  |
Beginning of period | 22,668 | 12,397
End of period | $ 73,069 | $ 33,997

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