XML 32 R22.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Income Per Share (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2017
Earnings Per Share [Abstract] |
Weighted Average Number of Common Shares Outstanding | The weighted average number of common shares outstanding is calculated as follows (in thousands):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Weighted average shares outstanding - basic |  |  | 51,154 |  |  |  | 50,977 |  |  |  | 51,100 |  |  |  | 51,011 |
Effect of dilutive stock-based compensation |  |  | 180 |  |  |  | 244 |  |  |  | 216 |  |  |  | 285 |
Weighted average shares outstanding - diluted |  |  | 51,334 |  |  |  | 51,221 |  |  |  | 51,316 |  |  |  | 51,296 |

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