The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Name Accounting Standards Codification
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Name Statement of Financial Accounting Standard (FAS)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
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