XML 21 R9.htm IDEA: XBRL DOCUMENT
v3.10.0.1

NET INCOME PER SHARE | 9 Months Ended
--- | ---
Sep. 30, 2018
NET INCOME PER SHARE [Abstract] |
NET INCOME PER SHARE |
2. | NET INCOME PER SHARE
Net income per share is computed based on the weighted-average number of common shares outstanding during the periods presented. Additionally, diluted earnings per share data gives effect to all potentially dilutive common shares that were outstanding during the periods presented. For the three-month periods ended September 30, 2018 and 2017, stock options of 0.5 million and 0.2 million, respectively, and for the nine-month periods ended September 30, 2018 and 2017, stock options of 0.9 million and 0.4 million, respectively, were excluded from the calculation of diluted earnings per share because they were anti-dilutive.

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 The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration