XML 168 R145.htm IDEA: XBRL DOCUMENT

Disclosure of leases and similar arrangements - Future Minimum Rental Payments Due (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Disclosure of finance lease and operating lease by lessee [line items]
Minimum lease payments payable under cancellable operating lease	$ 9,508	$ 9,075
Less than 1 year
Disclosure of finance lease and operating lease by lessee [line items]
Minimum lease payments payable under cancellable operating lease	9,082	7,841
Later than 1 year and no later than 5 years
Disclosure of finance lease and operating lease by lessee [line items]
Minimum lease payments payable under cancellable operating lease	$ 426	$ 1,234