Other intangible assets (Tables)

12 Months Ended

Dec. 31, 2012

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule of other intangible assets

Other intangible assets consist of the following as of December 31, 2012 and 2011:

	Favorable Lease Assets		Internet Sites	Trade Names	Total
Year ended December 31, 2012	$'000		$'000	$'000	$'000
Carrying amount:
Balance at January 1, 2012	13,460		1,609	7,100	22,169
Foreign currency translation adjustment	(489	)	83	—	(406	)
Balance at December 31, 2012	12,971		1,692	7,100	21,763
Accumulated amortization:
Balance at January 1, 2012	1,972		732	—	2,704
Charge for the year	354		136	—	490
Foreign currency translation adjustment	(78	)	39	—	(39	)
Balance at December 31, 2012	2,248		907	—	3,155
Net book value:
As at December 31, 2012	10,723		785	7,100	18,608
As at December 31, 2011	11,488		877	7,100	19,465

	Favorable Lease Assets		Internet Sites		Trade Names	Total
Year ended December 31, 2011	$'000		$'000		$'000	$'000
Carrying amount:
Balance at January 1, 2011	13,503		1,630		7,100	22,233
Foreign currency translation adjustment	(43	)	(21	)	—	(64	)
Balance at December 31, 2011	13,460		1,609		7,100	22,169
Accumulated amortization:
Balance at January 1, 2011	1,616		610		—	2,226
Charge for the year	368		132		—	500
Foreign currency translation adjustment	(12	)	(10	)	—	(22	)
Balance at December 31, 2011	1,972		732		—	2,704
Net book value:
As at December 31, 2011	11,488		877		7,100	19,465
As at December 31, 2010	11,887		1,020		7,100	20,007