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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2016
Earnings Per Share [Abstract] |
Computation of Earnings Per Common Share |
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﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Three Months Ended |  | Six Months Ended
﻿ |  | June 30, |  | June 30,
﻿(in thousands, except per share data) |  | 2016 |  | 2015 |  | 2016 |  | 2015
﻿Numerator: |  |  |  |  |  |  |  |  |  |  |  |
﻿Net income to common shareholders |  | $ | 46,907 |  | $ | 34,829 |  | $ | 50,746 |  | $ | 74,988
﻿Net income allocated to participating securities - basic and diluted |  |  | 1,136 |  |  | 766 |  |  | 1,233 |  |  | 1,701
﻿Net income allocated to common shareholders - basic and diluted |  | $ | 45,771 |  | $ | 34,063 |  | $ | 49,513 |  | $ | 73,287
﻿Denominator: |  |  |  |  |  |  |  |  |  |  |  |
﻿Weighted-average common shares - basic |  | $ | 77,523 |  | $ | 77,951 |  | $ | 77,512 |  | $ | 78,719
﻿Dilutive potential common shares |  |  | 157 |  |  | 164 |  |  | 164 |  |  | 162
﻿Weighted-average common shares - diluted |  | $ | 77,680 |  | $ | 78,115 |  | $ | 77,676 |  | $ | 78,881
﻿Earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |
﻿Basic |  | $ | 0.59 |  | $ | 0.44 |  | $ | 0.64 |  | $ | 0.93
﻿Diluted |  | $ | 0.59 |  | $ | 0.44 |  | $ | 0.64 |  | $ | 0.93
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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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