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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2016
Earnings Per Share [Abstract] |
Computation of Earnings Per Common Share |
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﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Three Months Ended |  | Nine Months Ended
﻿ |  | September 30, |  | September 30,
﻿(in thousands, except per share data) |  | 2016 |  | 2015 |  | 2016 |  | 2015
﻿Numerator: |  |  |  |  |  |  |  |  |  |  |  |
﻿Net income to common shareholders |  | $ | 46,719 |  | $ | 41,166 |  | $ | 97,465 |  | $ | 116,154
﻿Net income allocated to participating securities - basic and diluted |  |  | 1,101 |  |  | 840 |  |  | 2,334 |  |  | 2,541
﻿Net income allocated to common shareholders - basic and diluted |  | $ | 45,618 |  | $ | 40,326 |  | $ | 95,131 |  | $ | 113,613
﻿Denominator: |  |  |  |  |  |  |  |  |  |  |  |
﻿Weighted-average common shares - basic |  | $ | 77,550 |  | $ | 77,928 |  | $ | 77,525 |  | $ | 78,452
﻿Dilutive potential common shares |  |  | 127 |  |  | 147 |  |  | 128 |  |  | 157
﻿Weighted-average common shares - diluted |  | $ | 77,677 |  | $ | 78,075 |  | $ | 77,653 |  | $ | 78,609
﻿Earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |
﻿Basic |  | $ | 0.59 |  | $ | 0.52 |  | $ | 1.23 |  | $ | 1.45
﻿Diluted |  | $ | 0.59 |  | $ | 0.52 |  | $ | 1.23 |  | $ | 1.45
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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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