Annual report pursuant to Section 13 and 15(d)

Income Tax - Schedule of Reconciliation of Net Deferred Tax Liabilities to Financial Instrument (Detail)

v3.19.1
Income Tax - Schedule of Reconciliation of Net Deferred Tax Liabilities to Financial Instrument (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Components of Deferred Tax Assets and Liabilities [Abstract]    
Deferred income tax asset per balance sheet   $ 1,070
Deferred income tax liability per balance sheet $ (35,272) (34,151)
Net deferred tax liabilities $ (35,272) $ (33,081)