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Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2018
Accounting Policies [Abstract] |
Calculation Of Basic And Diluted Earnings Per Share | The calculations of basic and diluted earnings per share for the three months ended March 31, 2018 and 2017 are:
| Three Months Ended March 31,
| 2018 |  | 2017
Net income | $ | 139,838 |  |  | $ | 88,737 |
Shares used to compute basic earnings per common share | 157,434,000 |  |  | 159,091,000 |
Dilutive effect of stock options | 5,990,000 |  |  | 3,651,000 |
Shares used to compute diluted earnings per common share | 163,424,000 |  |  | 162,742,000 |
Basic earnings per common share | $ | 0.89 |  |  | $ | 0.56 |
Diluted earnings per common share | $ | 0.86 |  |  | $ | 0.55 |
Adjustments To Reconcile Net Income To Net Cash Provided By Operating Activities | The following table provides the details of the adjustments to reconcile net income to net cash provided by operating activities for the three months ended March 31:
| 2018 |  | 2017
Net income | $ | 139,838 |  |  | $ | 88,737 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation | 7,122 |  |  | 6,800 |
Amortization | 11,854 |  |  | 12,022 |
Equity in earnings of unconsolidated affiliate | (40,607 | ) |  | (33,565 | )
Distributions received from unconsolidated affiliate | 45,617 |  |  | 35,265 |
Stock-based compensation | 5,195 |  |  | 6,180 |
Provision for losses on receivables | 93 |  |  | (5 | )
Deferred income tax expense | 2,083 |  |  | 877 |
Net gain from investments | 410 |  |  | (347 | )
Change in other long-term liabilities | 579 |  |  | 965 |
Change in other assets | 290 |  |  | (849 | )
Other | (784 | ) |  | 56 |
Change in current assets and liabilities |  |  |
Decrease (increase) in |  |  |
Receivables from investment products | 1,757 |  |  | 10,308 |
Receivables | (25,657 | ) |  | (24,243 | )
Other current assets | (3,564 | ) |  | (2,298 | )
Increase (decrease) in |  |  |
Accounts payable | 3,195 |  |  | 1,406 |
Accrued liabilities | (43,522 | ) |  | (27,754 | )
Deferred revenue | 275 |  |  | (543 | )
Total adjustments | (35,664 | ) |  | (15,725 | )
Net cash provided by operating activities | $ | 104,174 |  |  | $ | 73,012 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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