Stock-based compensation (Tables)
|9 Months Ended|
Sep. 30, 2017
|Share-based Compensation Arrangement by Share-based Payment Award [Line Items]|
|Schedule of Stock Option Activity||
Stock option activity for the nine months ended September 30, 2017 was as follows:
Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.
Reference 1: http://www.xbrl.org/2003/role/presentationRef
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
No definition available.