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Earnings per Share | 6 Months Ended
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Jun. 30, 2019
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings per Share Net income is divided by the weighted average number of common shares outstanding during the period to calculate basic earnings per share. Diluted earnings per share is calculated to give effect to stock options and RSUs. The following table summarizes the dilutive effect of RSUs and options to purchase common stock for the six months ended June 30, 2019 and 2018:
|  | Three months ended June 30, |  | Six months ended June 30,
|  | 2019 |  | 2018 |  | 2019 |  | 2018
Weighted average common shares—basic |  | 45,592,075 |  |  | 45,920,307 |  |  | 45,585,445 |  |  | 45,850,137 |
Dilutive effect of restricted stock units |  | 174,571 |  |  | 176,658 |  |  | 253,796 |  |  | 267,620 |
Dilutive effect of stock options |  | 61,669 |  |  | 103,792 |  |  | 71,008 |  |  | 97,290 |
Weighted average common shares—diluted |  | 45,828,315 |  |  | 46,200,757 |  |  | 45,910,249 |  |  | 46,215,047 |
In February 2019, the Company announced its Board of Directors had authorized the Company to increase the purchase of its common stock up to $75 million in the aggregate. The previous authorization, approved in November 2015, authorized up to $50 million in share repurchases. In the three and six months ended June 30, 2019, the Company purchased 502,500 and 527,400 shares of its outstanding common stock for approximately $14.7 million and $15.4 million, respectively. During the the three and six months ended June 30, 2018, the Company purchased 100,947 shares of its outstanding common stock for approximately $2.9 million.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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