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Consolidated Statements Of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Cash flows - operating activities: |  |  |  |
Net income including noncontrolling interests |  | $ 633,329 | $ 406,122 | $ 383,701
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |
Depreciation and amortization |  | 51,822 | 47,296 | 48,347
Amortization of identifiable intangible assets |  | 67,143 | 61,315 | 64,089
Provision for credit losses |  | 7,859 | 5,166 | 8,041
Deferred income taxes |  | (16,651) | 10,483 | 9,517
Gain on sale or disposal of property, plant, and equipment |  | (2,057) | (6,393) | (782)
Excess tax benefits from share-based compensation |  | (1,719) | (1,654) | (828)
Equity (income) loss from unconsolidated entities |  | (1,660) | (391) | 1,170
Non-cash expense for amortization of debt issuance costs |  | 960 | 960 | 960
Non-cash expense from contingent consideration arrangements |  | 2,287 | 1,610 | 1,810
Non-cash expense for impairment of long-lived assets |  | 2,350 | 0 | 0
Non-cash share-based compensation expense |  | 13,739 | 12,125 | 11,107
Distributions from unconsolidated entities |  | 400 | 400 | 44
Changes in operating assets and liabilities, excluding the effect of businesses acquired: |  |  |  |
Increase in accounts receivable |  | (626,494) | (340,091) | (246,856)
Increase in inventories |  | (23,442) | (31,541) | (116)
Decrease (increase) in contract assets |  | 5,733 | (44,725) | (50,648)
Increase in accounts payable |  | 82,192 | 111,488 | 54,849
Increase in contract liabilities |  | 489,728 | 299,897 | 44,713
Increase (decrease) in accrued payroll and benefits and other accrued expenses and liabilities |  | 189,268 | (30,025) | 46,573
Changes in other assets and liabilities, net |  | 24,868 | (4,109) | (56,874)
Net cash provided by operating activities |  | 899,655 | 497,933 | 318,817
Cash flows - investing activities: |  |  |  |
Payments for acquisitions of businesses, net of cash acquired |  | (96,491) | (98,656) | (118,239)
Proceeds from sale or disposal of property, plant, and equipment |  | 13,604 | 7,145 | 2,754
Purchases of property, plant, and equipment |  | (78,404) | (49,289) | (36,192)
Investments in and advances to unconsolidated entities |  | 0 | 0 | (1,595)
Distributions from unconsolidated entities |  | 0 | 0 | 196
Net cash used in investing activities |  | (161,291) | (140,800) | (153,076)
Cash flows - financing activities: |  |  |  |
Proceeds from revolving credit facility |  | 200,000 | 270,000 | 0
Repayments of revolving credit facility |  | (200,000) | (270,000) | 0
Repayments of long-term debt and debt issuance costs |  | (246,171) | (13,875) | (13,875)
Repayments of finance lease liabilities |  | (2,776) | (3,551) | (4,189)
Dividends paid to stockholders |  | (32,684) | (27,187) | (28,163)
Repurchases of common stock |  | (127,713) | (660,609) | (195,546)
Taxes paid related to net share settlements of equity awards |  | (6,060) | (7,539) | (4,210)
Issuances of common stock under employee stock purchase plan |  | 9,189 | 8,177 | 7,328
Payments for contingent consideration arrangements |  | (5,839) | (5,534) | (6,758)
Distributions to noncontrolling interests |  | 0 | 0 | (43)
Net cash used in financing activities |  | (412,054) | (710,118) | (245,456)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash |  | 6,372 | (12,515) | (1,279)
Increase (decrease) in cash, cash equivalents, and restricted cash |  | 332,682 | (365,500) | (80,994)
Cash, cash equivalents, and restricted cash at beginning of year (1) | [1] | 457,068 | 822,568 | 903,562
Cash, cash equivalents, and restricted cash at end of period (1) | [1] | $ 789,750 | $ 457,068 | $ 822,568
[1] | Includes $0.6 million, $1.2 million, and $0.7 million of restricted cash classified as “Prepaid expenses and other” in the Consolidated Balance Sheets as of December 31, 2022, 2021, and 2020, respectively.

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