XML 63 R22.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Net Income Per Share (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2017
Earnings Per Share [Abstract] |
Reconciliation between Basic and Diluted Weighted Average Shares Outstanding | The following is a reconciliation between basic and diluted weighted average shares outstanding:
| For the three months ended March 31,
(in thousands, except per share data) | 2017 |  | 2016
Net income | $ | 70,110 |  |  | $ | 62,070 |
Net income attributable to unvested awarded performance stock | (1,685 | ) |  | (1,451 | )
Net income attributable to common shares | $ | 68,425 |  |  | $ | 60,619 |
Weighted average number of common shares outstanding – basic | 140,112 |  |  | 138,793 |
Less unvested awarded performance stock included in weighted average number of common shares outstanding – basic | (3,368 | ) |  | (3,245 | )
Weighted average number of common shares outstanding for basic earnings per common share | 136,744 |  |  | 135,548 |
Dilutive effect of stock options | 2,282 |  |  | 1,392 |
Weighted average number of shares outstanding – diluted | 139,026 |  |  | 136,940 |
Net income per share: |  |  |
Basic | $ | 0.50 |  |  | $ | 0.45 |
Diluted | $ | 0.49 |  |  | $ | 0.44 |

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + 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
Name: | us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration