Income taxes	6 Months Ended
Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income taxes	Income taxes In the three and six months ended June 30, 2017, the income tax provision was $2,142,000 (June 30, 2016 - provision of $14,335,000) and a benefit of $3,124,000 (June 30, 2016 - provision of $4,739,000), respectively. The decrease in tax charge is mainly as a result of the reduction in earnings from operations, primarily due to costs associated with the acquisition of Cap Juluca in the three and six months ended June 30, 2017. See Note 3.

Income taxes

6 Months Ended

Jun. 30, 2017

In the three and six months ended June 30, 2017, the income tax provision was $2,142,000 (June 30, 2016 - provision of $14,335,000) and a benefit of $3,124,000 (June 30, 2016 - provision of $4,739,000), respectively. The decrease in tax charge is mainly as a result of the reduction in earnings from operations, primarily due to costs associated with the acquisition of Cap Juluca in the three and six months ended June 30, 2017. See Note 3.