Supplemental cash flow information (Tables)

6 Months Ended

Jun. 30, 2015

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental cash flow information

	Six months ended
	June 30, 2015	June 30, 2014
	$’000	$’000
Cash paid during the period for:
Interest	13,980	15,775
Income taxes, net of refunds	8,810	9,115