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Earnings Per Common Share (Tables) | 9 Months Ended
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Sep. 30, 2018
Earnings Per Common 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) |  | 2018 |  | 2017 |  | 2018 |  | 2017
﻿Numerator: |  |  |  |  |  |  |  |  |  |  |  |
﻿Net income to common shareholders |  | $ | 83,878 |  | $ | 58,902 |  | $ | 227,530 |  | $ | 160,183
﻿Net income allocated to participating securities - basic and diluted |  |  | 1,544 |  |  | 1,244 |  |  | 4,238 |  |  | 3,566
﻿Net income allocated to common shareholders - basic and diluted |  | $ | 82,334 |  | $ | 57,658 |  | $ | 223,292 |  | $ | 156,617
﻿Denominator: |  |  |  |  |  |  |  |  |  |  |  |
﻿Weighted-average common shares - basic |  | $ | 85,348 |  | $ | 84,749 |  | $ | 85,298 |  | $ | 84,577
﻿Dilutive potential common shares |  |  | 191 |  |  | 231 |  |  | 184 |  |  | 241
﻿Weighted-average common shares - diluted |  | $ | 85,539 |  | $ | 84,980 |  | $ | 85,482 |  | $ | 84,818
﻿Earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |
﻿Basic |  | $ | 0.96 |  | $ | 0.68 |  | $ | 2.62 |  | $ | 1.85
﻿Diluted |  | $ | 0.96 |  | $ | 0.68 |  | $ | 2.61 |  | $ | 1.85
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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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