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Segment Disclosures - Summary of Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Revenue | $ 278,648 | $ 236,943 | $ 579,378 | $ 514,398
Operating expenses | 236,934 | 209,016 | 460,905 | 408,843
Gross margin | 41,714 | 27,927 | 118,473 | 105,555
Corporate general and administrative expenses | 13,816 | 11,160 | 28,299 | 21,649
Legal settlement, net | 30,468 | 0 | 30,468 | 0
Operating (loss) income | (2,570) | 16,767 | 59,706 | 83,906
Other income (expense): |  |  |  |
Interest expense | (959) | (2,074) | (1,836) | (3,193)
Gain on sale of operations, net | 6,385 | 57 | 6,385 | 152
Other income, net | 8,373 | 13,336 | 13,162 | (2,464)
Total other income (expense), net | 13,799 | 11,319 | 17,711 | (5,505)
Income from continuing operations before income tax expense | 11,229 | 28,086 | 77,417 | 78,401
Financial Services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 186,589 | 154,083 | 390,738 | 342,860
Benefits & Insurance |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 82,620 | 73,940 | 169,859 | 153,552
National Practices |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 9,439 | 8,920 | 18,781 | 17,986
Operating segments | Financial Services |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 186,589 | 154,083 | 390,738 | 342,860
Operating expenses | 150,920 | 127,417 | 292,666 | 266,015
Gross margin | 35,669 | 26,666 | 98,072 | 76,845
Corporate general and administrative expenses | 0 | 0 | 0 | 0
Legal settlement, net | 0 |  | 0 |
Operating (loss) income | 35,669 | 26,666 | 98,072 | 76,845
Other income (expense): |  |  |  |
Interest expense | 0 | 0 | 0 | 0
Gain on sale of operations, net | 0 | 11 | 0 | 51
Other income, net | 194 | 27 | 292 | 46
Total other income (expense), net | 194 | 38 | 292 | 97
Income from continuing operations before income tax expense | 35,863 | 26,704 | 98,364 | 76,942
Operating segments | Benefits & Insurance |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 82,620 | 73,940 | 169,859 | 153,552
Operating expenses | 67,776 | 61,283 | 134,709 | 126,506
Gross margin | 14,844 | 12,657 | 35,150 | 27,046
Corporate general and administrative expenses | 0 | 0 | 0 | 0
Legal settlement, net | 0 |  | 0 |
Operating (loss) income | 14,844 | 12,657 | 35,150 | 27,046
Other income (expense): |  |  |  |
Interest expense | 0 | (9) | 0 | (20)
Gain on sale of operations, net | 6,385 | 46 | 6,385 | 101
Other income, net | 698 | 130 | 872 | 226
Total other income (expense), net | 7,083 | 167 | 7,257 | 307
Income from continuing operations before income tax expense | 21,927 | 12,824 | 42,407 | 27,353
Operating segments | National Practices |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 9,439 | 8,920 | 18,781 | 17,986
Operating expenses | 8,487 | 7,990 | 17,028 | 16,273
Gross margin | 952 | 930 | 1,753 | 1,713
Corporate general and administrative expenses | 0 | 0 | 0 | 0
Legal settlement, net | 0 |  | 0 |
Operating (loss) income | 952 | 930 | 1,753 | 1,713
Other income (expense): |  |  |  |
Interest expense | 0 | 0 | 0 | 0
Gain on sale of operations, net | 0 | 0 | 0 | 0
Other income, net | 0 | 0 | 0 | 1
Total other income (expense), net | 0 | 0 | 0 | 1
Income from continuing operations before income tax expense | 952 | 930 | 1,753 | 1,714
Corporate and Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Operating expenses | 9,751 | 12,326 | 16,502 | 49
Gross margin | (9,751) | (12,326) | (16,502) | (49)
Corporate general and administrative expenses | 13,816 | 11,160 | 28,299 | 21,649
Legal settlement, net | 30,468 |  | 30,468 |
Operating (loss) income | (54,035) | (23,486) | (75,269) | (21,698)
Other income (expense): |  |  |  |
Interest expense | (959) | (2,065) | (1,836) | (3,173)
Gain on sale of operations, net | 0 | 0 | 0 | 0
Other income, net | 7,481 | 13,179 | 11,998 | (2,737)
Total other income (expense), net | 6,522 | 11,114 | 10,162 | (5,910)
Income from continuing operations before income tax expense | $ (47,513) | $ (12,372) | $ (65,107) | $ (27,608)

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