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Quarterly Operating Results (Tables) | 12 Months Ended
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Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Quarterly Operating Results | Quarterly operating results for 2020 and 2019 were as follows:
(in thousands, except per share data) |  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  | $ | 698,495 |  |  | $ | 598,806 |  |  | $ | 673,962 |  |  | $ | 642,111 |
Total expenses |  | $ | 493,242 |  |  | $ | 469,405 |  |  | $ | 515,434 |  |  | $ | 511,195 |
Income before income taxes |  | $ | 205,253 |  |  | $ | 129,401 |  |  | $ | 158,528 |  |  | $ | 130,916 |
Net income |  | $ | 152,400 |  |  | $ | 96,784 |  |  | $ | 133,979 |  |  | $ | 97,320 |
Net income per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.54 |  |  | $ | 0.34 |  |  | $ | 0.47 |  |  | $ | 0.34 |
Diluted |  | $ | 0.54 |  |  | $ | 0.34 |  |  | $ | 0.47 |  |  | $ | 0.34 |
2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  | $ | 619,280 |  |  | $ | 575,219 |  |  | $ | 618,683 |  |  | $ | 578,989 |
Total expenses |  | $ | 470,760 |  |  | $ | 451,697 |  |  | $ | 466,845 |  |  | $ | 476,940 |
Income before income taxes |  | $ | 148,520 |  |  | $ | 123,522 |  |  | $ | 151,838 |  |  | $ | 102,049 |
Net income |  | $ | 113,896 |  |  | $ | 92,593 |  |  | $ | 115,506 |  |  | $ | 76,519 |
Net income per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.41 |  |  | $ | 0.33 |  |  | $ | 0.41 |  |  | $ | 0.27 |
Diluted |  | $ | 0.40 |  |  | $ | 0.33 |  |  | $ | 0.41 |  |  | $ | 0.27 |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121640914&loc=d3e1280-108306 + Details
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