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Earnings Per Share | 3 Months Ended
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Mar. 31, 2015
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings per share Basic earnings per share is computed by dividing net income attributable to Oppenheimer Holdings Inc. by the weighted average number of shares of Class A non-voting common stock ("Class A Stock") and Class B voting common stock ("Class B Stock") outstanding. Diluted earnings per share includes the weighted average number of shares of Class A Stock and Class B Stock outstanding and restricted stock awards of Class A Stock using the treasury stock method. Earnings per share have been calculated as follows:
(Expressed in thousands, except number of shares and per share amounts) |  |  |
| For the Three Months Ended March 31,
| 2015 |  | 2014
Basic weighted average number of shares outstanding | 13,704,228 |  |  | 13,536,805 |
Net dilutive effect of share-based awards, treasury method (1) | 578,042 |  |  | 578,152 |
Diluted weighted average number of shares outstanding | 14,282,270 |  |  | 14,114,957 |
Net income for the period | $ | 6,121 |  |  | $ | 3,420 |
Net income attributable to noncontrolling interest, net of tax | 402 |  |  | 196 |
Net income attributable to Oppenheimer Holdings Inc. | $ | 5,719 |  |  | $ | 3,224 |
Basic earnings per share | $ | 0.42 |  |  | $ | 0.24 |
Diluted earnings per share | $ | 0.40 |  |  | $ | 0.23 |
(1) | For the three months ended March 31, 2015, the diluted earnings per share computation does not include the anti-dilutive effect of 46,076 shares of Class A Stock granted under share-based compensation arrangements (55,309 shares of Class A Stock granted under share-based compensation arrangements for the three months ended March 31, 2014).

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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