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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Cash and Cash Equivalents [Line Items] |  |
Repayments of Lines of Credit | $ 350,000 | $ 0
Document Period End Date | Mar. 31, 2019 |
Payments of Debt Issuance Costs | $ (3,698) | 0
Cash, Cash Equivalents and Restricted Cash | 624,887 | 826,377
Cash flows from operating activities: |  |
Net income | 113,896 | 90,828
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Amortization | 26,192 | 20,539
Depreciation | 6,035 | 5,552
Non-cash stock-based compensation | 12,994 | 7,295
Change in estimated acquisition earn-out payables | 1,210 | 2,466
Deferred income taxes | (14,875) | (12,093)
Amortization of debt discount | 456 | 407
Accretion (Amortization) of Discounts and Premiums, Investments | (7) | 3
Payments On Acquisition Earn Outs In Excess Of Original Estimated Payables | 0 | (715)
Net gain on sales of investments, fixed assets and customer accounts | 799 | (2,388)
Changes in operating assets and liabilities, net of effect from acquisitions and divestitures: |  |
Premiums, commissions and fees receivable decrease | (6,484) | 7,667
Reinsurance recoverables decrease | 14,040 | 329,771
Prepaid reinsurance premiums decrease | 23,557 | 28,845
Other assets decrease | (29,521) | 806
Premiums payable to insurance companies (decrease) | (61,229) | (2,691)
Premium deposits and credits due customers increase | (11,362) | 5,910
Losses and loss adjustment reserve (decrease) | (13,856) | (329,874)
Unearned premiums (decrease) | (23,557) | (28,845)
Accounts payable increase | 56,436 | 52,896
Accrued expenses and other liabilities (decrease) | (97,689) | (94,514)
Other liabilities (decrease) | 8,321 | (2,384)
Net cash provided by operating activities | 5,356 | 79,481
Cash flows from investing activities: |  |
Additions to fixed assets | (23,186) | (9,751)
Payments for businesses acquired, net of cash acquired | (95,081) | (33,576)
Proceeds from sales of fixed assets and customer accounts | 32 | 142
Purchases of investments | (31) | (6,142)
Proceeds from Sale, Maturity and Collection of Investments | 2,392 | 6,531
Net cash used in investing activities | (115,874) | (42,796)
Cash flows from financing activities: |  |
Payments on acquisition earn-outs | (579) | (1,761)
Proceeds from Issuance of Long-term Debt | 350,000 | 0
Payments on long-term debt | (8,750) | (5,000)
Issuances of common stock for employee stock benefit plans | 16 | 720
Repurchase Of Stock Benefit Plan Shares For Employees To Fund Tax Withholdings | (6,832) | (7,659)
Purchase of treasury stock | 0 | (11,250)
Settlement (prepayment) of accelerated share repurchase program | 0 | 11,250
Cash dividends paid | (22,348) | (20,696)
Net cash used in financing activities | (42,191) | (34,396)
Cash and cash equivalents inclusive of restricted cash at end of period | 322,477 | 558,248
Cash and Cash Equivalents inclusive of Restricted Cash [Member] |  |
Cash flows from financing activities: |  |
Net increase in cash and cash equivalents inclusive of restricted cash | (152,709) | 2,289
Cash and cash equivalents inclusive of restricted cash at end of period | $ 624,887 | $ 826,377

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- Definition Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the purchase of all investments (debt, security, other) during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=96867065&loc=SL79508275-113901 + Details
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- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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