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SUPPLEMENTARY QUARTERLY FINANCIAL DATA (Unaudited). | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
SUPPLEMENTARY QUARTERLY FINANCIAL DATA (Unaudited) | SUPPLEMENTARY QUARTERLY FINANCIAL DATA (Unaudited).
| Net revenues |  | Net income(2) | Net income attributable to T. Rowe Price Group(2) |  | Basic earnings on common stock(1) |  | Diluted earnings on common stock(1),(2)
| (in millions) |  | (per share)
2016 |  |  |  |  |  |  |  |
1st quarter | $ | 994.1 |  |  | $ | 313.3 |  | $ | 304.1 |  |  | $ | 1.21 |  |  | $ | 1.18 |
2nd quarter | $ | 1,044.7 |  |  | $ | 211.2 |  | $ | 203.3 |  |  | $ | .81 |  |  | $ | .79 |
3rd quarter | $ | 1,092.9 |  |  | $ | 362.7 |  | $ | 327.8 |  |  | $ | 1.30 |  |  | $ | 1.28 |
4th quarter | $ | 1,091.2 |  |  | $ | 366.8 |  | $ | 379.8 |  |  | $ | 1.53 |  |  | $ | 1.50 |
2017 |  |  |  |  |  |  |  |
1st quarter | $ | 1,113.6 |  |  | $ | 400.4 |  | $ | 385.9 |  |  | $ | 1.56 |  |  | $ | 1.54 |
2nd quarter | $ | 1,171.6 |  |  | $ | 390.0 |  | $ | 373.9 |  |  | $ | 1.52 |  |  | $ | 1.50 |
3rd quarter | $ | 1,221.7 |  |  | $ | 404.2 |  | $ | 390.9 |  |  | $ | 1.59 |  |  | $ | 1.56 |
4th quarter | $ | 1,286.1 |  |  | $ | 386.6 |  | $ | 347.1 |  |  | $ | 1.40 |  |  | $ | 1.37 |
(1)The sums of quarterly earnings per share may not equal annual earnings per share because the computations are done independently. (2)The second quarter of 2016 includes a nonrecurring operating charge of $166.2 million, or $.39 in diluted earnings per share, related to our decision to compensate certain clients in regard to the Dell appraisal rights matter. In the fourth quarter of 2016, we recognized an offset to this charge for a related insurance recovery of $100 million, or $.24 in diluted earnings per share. During the first quarter of 2017, we recognized an additional $50 million in insurance recoveries, or $.12 in diluted earnings per share relating to the Dell matter. For more details related to the Dell appraisal rights matter, see Note 12 to the consolidated financial statements. During the fourth quarter of 2017, we recognized a nonrecurring charge of $71.1 million related to the U.S. tax law changes that were enacted on December 22, 2017. See Note 7 to the consolidated financial statements for further details.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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