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Earnings Per Share (Text Block) | 3 Months Ended
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Mar. 31, 2017
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] | Earnings Per Share The following table sets forth the computation of basic and diluted earnings per share (EPS):
| Three Months Ended March 31,
| 2017 |  | 2016
| (in thousands, except per share data)
Net income available to common shareholders | $ | 15,845 |  |  | $ | 10,089 |
Weighted average common shares outstanding - Basic | 38,474 |  |  | 38,059 |
Dilutive effect of stock-based awards | 741 |  |  | 317 |
Weighted average common shares outstanding - Diluted | 39,215 |  |  | 38,376 |
Earnings per common share - Basic | $ | 0.41 |  |  | $ | 0.27 |
Earnings per common share - Diluted | $ | 0.40 |  |  | $ | 0.26 |
Stock-based Awards For stock-based awards, the dilutive effect is calculated using the treasury stock method. Under this method, the dilutive effect is computed as if the awards were exercised at the beginning of the period (or at time of issuance, if later) and assumes the related proceeds were used to repurchase common stock at the average market price during the period. Related proceeds include the amount the employee must pay upon exercise and the future compensation cost associated with the stock award. Approximately 0.2 million and 1.2 million stock-based awards were excluded from the calculation of diluted EPS for the three months ended March 31, 2017 and 2016 because they were anti-dilutive. These stock-based awards could be dilutive in future periods.

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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 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1278-109256 Reference 2: 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 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=64863997&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=65016374&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=63488584&loc=d3e20235-122688 + Details
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