Consolidated Statements of Operations - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Revenues:        
Asset management, administration and distribution fees $ 271,930 $ 252,585 $ 785,642 $ 756,101
Information processing and software servicing fees 76,443 74,413 224,834 218,765
Transaction-based and trade execution fees 6,268 8,624 22,259 23,945
Total revenues 354,641 335,622 1,032,735 998,811
Expenses:        
Subadvisory, distribution and other asset management costs 42,586 40,230 122,651 119,619
Software royalties and other information processing costs 7,519 8,028 22,944 23,594
Brokerage commissions 4,864 6,460 17,065 17,863
Compensation, benefits and other personnel 103,137 99,461 307,350 292,646
Stock-based compensation 4,066 3,867 12,044 11,476
Consulting, outsourcing and professional fees 43,631 35,963 121,712 108,560
Data processing and computer related 16,581 15,173 48,081 43,100
Facilities, supplies and other costs 17,075 22,477 50,194 56,195
Amortization 11,388 10,837 33,684 31,806
Depreciation 6,576 6,108 19,457 17,946
Total expenses 257,423 248,604 755,182 722,805
Income from operations 97,218 87,018 277,553 276,006
Net gain (loss) from investments 196 (756) 320 (544)
Interest and dividend income 1,026 846 3,142 2,570
Interest expense (115) (115) (416) (342)
Equity in earnings of unconsolidated affiliates 32,565 33,595 92,042 104,917
Gain on sale of subsidiary 0 0 2,791 2,791
Income before income taxes 130,890 120,588 375,432 385,398
Income taxes 44,186 41,163 130,226 135,122
Net income $ 86,704 $ 79,425 $ 245,206 $ 250,276
Basic earnings per common share $ 0.54 $ 0.48 $ 1.51 $ 1.51
Shares used to compute basic earnings per share 160,916 165,579 161,908 166,142
Diluted earnings per common share $ 0.53 $ 0.47 $ 1.49 $ 1.47
Shares used to compute diluted earnings per share 163,925 169,255 165,053 169,977
Dividends declared per common share $ 0.00 $ 0.00 $ 0.26 $ 0.24