XML 286 R111.htm IDEA: XBRL DOCUMENT v3.19.2
Derivative Financial Instruments - Schedule of Derivative Financial Instruments (Details) - NZD ($)
$ in Thousands
Jan. 31, 2019
Jan. 31, 2018
Jan. 31, 2017
Derivative Financial Instruments      
Current liabilities $ 1,484 $ 2,087 $ 4,188