SEGMENT AND GEOGRAPHIC DATA Geographic Data Reporting (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenue	$ 110,028	$ 149,278	$ 357,088	$ 444,515
Long-lived assets, net of accumulated depreciation and amortization	9,792	14,054	9,792	14,054
Net assets	64,065	58,287	64,065	58,287	$ 59,257
United Kingdon
Segment Reporting Information [Line Items]
Revenue	40,102	45,959	118,083	139,348
Long-lived assets, net of accumulated depreciation and amortization	1,866	2,269	1,866	2,269
Net assets	15,421	15,072	15,421	15,072
Australia
Segment Reporting Information [Line Items]
Revenue	40,075	50,556	120,457	142,141
Long-lived assets, net of accumulated depreciation and amortization	4,123	6,306	4,123	6,306
Net assets	9,012	15,949	9,012	15,949
United States
Segment Reporting Information [Line Items]
Revenue	3,575	12,849	24,424	37,836
Long-lived assets, net of accumulated depreciation and amortization	821	1,707	821	1,707
Net assets	17,003	8,630	17,003	8,630
Europe
Segment Reporting Information [Line Items]
Revenue	10,582	23,293	47,986	78,208
Long-lived assets, net of accumulated depreciation and amortization	95	378	95	378
Net assets	9,067	8,558	9,067	8,558
Asia Pacific
Segment Reporting Information [Line Items]
Revenue	15,534	16,434	45,666	46,381
Long-lived assets, net of accumulated depreciation and amortization	2,887	3,367	2,887	3,367
Net assets	13,554	9,995	13,554	9,995
Other Americas
Segment Reporting Information [Line Items]
Revenue	160	187	472	601
Long-lived assets, net of accumulated depreciation and amortization	0	27	0	27
Net assets	$ 8	$ 83	$ 8	$ 83