Assets held for sale and discontinued operations - Summarized operating results for discontinued operations (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended
	Jan. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Operating results
Revenue		$ 0	$ 2,071
Losses before tax, gain on sale and impairment		(735)	(1,550)
Impairment		0	(77)
Gain on sale		0	439
Losses before tax		(735)	(1,188)
Tax benefit		0	386
Net (losses)/earnings from discontinued operations		(735)	(802)
Ubud Hanging Gardens
Operating results
Revenue		0	1,236
Losses before tax, gain on sale and impairment		(677)	129
Impairment		0	0
Gain on sale		0	0
Losses before tax		(677)	129
Tax benefit		0	(36)
Net (losses)/earnings from discontinued operations		(677)	93
Porto Cupecoy
Operating results
Revenue		0	835
Losses before tax, gain on sale and impairment		(58)	(1,679)
Impairment		0	(77)
Gain on sale	439	0	439
Losses before tax		(58)	(1,317)
Tax benefit		0	0
Net (losses)/earnings from discontinued operations		(58)	(1,317)
The Westcliff
Operating results
Revenue			0
Losses before tax, gain on sale and impairment			0
Impairment			0
Gain on sale			0
Losses before tax			0
Tax benefit			422
Net (losses)/earnings from discontinued operations			$ 422