In millions, except per share items | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 |
| 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
Revenues: | | | | | | | | |
Total revenues | 301.1 | 259.7 | 312.4 | 341.5 | 360.5 | 353.0 | 381.0 | 421.9 |
Total revenues growth | 15.9% | -16.9% | -8.5% | -5.3% | 2.1% | -7.3% | -9.7% | -19046.4% |
Expenses: | | | | | | | | |
Compensation | 118.2 | 102.3 | 123.5 | 83.8 | 134.2 | 86.6 | 136.5 | 151.3 |
Management fee | 5.6 | 5.4 | | | | | | |
Distribution costs | 30.3 | 28.5 | 34.2 | 39.2 | 44.4 | 44.2 | 52.0 | |
Other operating expenses | 29.7 | 23.9 | 26.7 | 22.7 | 23.2 | 23.9 | 19.2 | 17.5 |
Total expenses | 183.7 | 160.1 | 194.4 | 154.7 | 215.5 | 161.2 | 233.0 | 252.5 |
Operating income | 117.4 | 99.6 | 118.0 | 186.8 | 145.0 | 191.8 | 147.9 | 169.5 |
Operating margin | 39.0% | 38.4% | 37.8% | 54.7% | 40.2% | 54.3% | 38.8% | 40.2% |
|
Non-operating income / (loss) | | | | | | | | |
Gain/(Loss) from investments, net | 0.3 | -8.7 | -5.4 | -25.2 | 3.1 | 1.6 | 5.0 | 4.3 |
Interest and dividend income | 0.6 | 0.8 | 3.2 | 2.2 | | | | |
Interest expense | -2.9 | -2.6 | -2.6 | -3.5 | | | | |
|
Shareholder-designated charitable contribution | | | | | | | | |
Total non-operating income / (loss) | -13.4 | -15.9 | -9.3 | -32.1 | -12.1 | -9.6 | -8.9 | -1.4 |
Income before income taxes | 104.0 | 83.7 | | | | | | |
Provision for income taxes | 30.8 | 25.0 | 26.7 | 37.5 | 55.1 | 65.1 | 51.7 | 61.7 |
Net income | 73.2 | 58.7 | 81.9 | 117.2 | 77.8 | 117.1 | 83.4 | 109.4 |
|
Earnings per share: | | | | | | | | |
Basic (in dollars per share) | $2.79 | $2.21 | $2.99 | $4.08 | $2.68 | $4.01 | $3.28 | $4.32 |
Diluted (in dollars per share) | $2.73 | $2.20 | $2.98 | $4.07 | $2.60 | $3.92 | $3.24 | $4.28 |
|
Weighted average shares outstanding: | | | | | | | | |
Basic (in shares) | 26.3 | 26.6 | 27.4 | 28.7 | 29.0 | 29.5 | 25.7 | 25.6 |
Diluted (in shares) | 26.8 | 26.7 | 27.5 | 28.8 | 30.9 | 30.2 | 29.8 | 25.9 |