XML 100 R83.htm IDEA: XBRL DOCUMENT v3.10.0.1
Debt - Working Capital Facilities (Narrative) (Details) - New Zealand JV
1 Months Ended 12 Months Ended
Jun. 30, 2016
NZD ($)
Dec. 31, 2018
USD ($)
Tranche A, Working Capital Facility    
Debt Instrument [Line Items]    
Debt instrument, term 12 months  
Maximum borrowing capacity $ 20,000,000  
Tranche B, Working Capital Facility    
Debt Instrument [Line Items]    
Debt instrument, term 18 months  
Maximum borrowing capacity $ 20,000,000  
Previous Working Capital Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity 40,000,000  
Working Capital Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 20,000,000  
Borrowings   $ 1,000,000.0
Repayments   1,000,000
Outstanding balance   $ 0