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Earnings per Share (Tables) | 9 Months Ended
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Sep. 30, 2016
Earnings per Share [Abstract] |
Calculations of the Basic and Diluted EPS |
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﻿ | Three Months Ended September 30, |  | Nine Months Ended September 30,
﻿(in thousands, except per share amounts) | 2016 |  | 2015 |  | 2016 |  | 2015
﻿Net income | $ | 28,801 |  | $ | 19,677 |  | $ | 65,561 |  | $ | 36,580
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﻿Weighted-average common shares outstanding - basic |  | 49,185 |  |  | 49,070 |  |  | 49,132 |  |  | 48,951
﻿Effect of diluted stock options and unvested restricted stock |  | 915 |  |  | 705 |  |  | 517 |  |  | 767
﻿Weighted-average common shares outstanding - diluted |  | 50,100 |  |  | 49,775 |  |  | 49,649 |  |  | 49,718
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﻿Net income per share: |  |  |  |  |  |  |  |  |  |  |
﻿Basic | $ | 0.59 |  | $ | 0.40 |  | $ | 1.33 |  | $ | 0.75
﻿Diluted | $ | 0.57 |  | $ | 0.40 |  | $ | 1.32 |  | $ | 0.74
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﻿Anti-dilutive shares not included above |  | 610 |  |  | 1,580 |  |  | 1,339 |  |  | 909
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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