XML 80 R73.htm IDEA: XBRL DOCUMENT v3.10.0.1
Income Tax Expense - Components of Provision for Income Tax (Expense) Recovery (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Income Tax Disclosure [Abstract]        
Current $ (8,410) $ (4,283) $ (11,221) $ (5,945)
Deferred (336) 756 (1,642) (601)
Income tax expense $ (8,746) $ (3,527) $ (12,863) $ (6,546)