Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Trade and Other Receivables - Disclosure of Impairment of Receivable (Details)

v3.19.2
Trade and Other Receivables - Disclosure of Impairment of Receivable (Details) - NZD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2019
Jan. 31, 2018
Jan. 31, 2017
TradeAndOtherReceivablesLineItems [Line Items]      
Gross carrying amount ($) $ 7,789 $ 9,982 $ 26,499
ECL provision $ 609    
0 - 30 Days [Member]      
TradeAndOtherReceivablesLineItems [Line Items]      
Expected loss rate (%)    
Gross carrying amount ($) $ 5,577 7,945 14,883
ECL provision    
31 - 60 Days [Member]      
TradeAndOtherReceivablesLineItems [Line Items]      
Expected loss rate (%)    
Gross carrying amount ($) $ 852 $ 335 $ 2,566
ECL provision    
61 - 90 Days [Member]      
TradeAndOtherReceivablesLineItems [Line Items]      
Expected loss rate (%)    
Gross carrying amount ($) $ 101    
ECL provision    
> 90 Days [Member]      
TradeAndOtherReceivablesLineItems [Line Items]      
Expected loss rate (%) 48.40%    
Gross carrying amount ($) $ 1,259    
ECL provision $ 609