SEGMENT AND GEOGRAPHIC DATA Geographic Data Reporting (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenue	$ 122,743	$ 151,070	$ 247,060	$ 295,237
Long-lived assets, net of accumulated depreciation and amortization	10,261	15,069	10,261	15,069
Net assets	68,615	68,604	68,615	68,604	$ 59,257
United Kingdon
Segment Reporting Information [Line Items]
Revenue	39,640	44,921	77,980	93,389
Long-lived assets, net of accumulated depreciation and amortization	1,874	2,825	1,874	2,825
Net assets	17,205	22,557	17,205	22,557
Australia
Segment Reporting Information [Line Items]
Revenue	41,340	49,137	80,381	91,585
Long-lived assets, net of accumulated depreciation and amortization	4,473	7,188	4,473	7,188
Net assets	11,309	17,875	11,309	17,875
United States
Segment Reporting Information [Line Items]
Revenue	10,022	12,968	20,849	24,987
Long-lived assets, net of accumulated depreciation and amortization	1,191	989	1,191	989
Net assets	18,902	7,306	18,902	7,306
Europe
Segment Reporting Information [Line Items]
Revenue	15,547	27,891	37,405	54,915
Long-lived assets, net of accumulated depreciation and amortization	90	461	90	461
Net assets	9,079	9,740	9,079	9,740
Asia Pacific
Segment Reporting Information [Line Items]
Revenue	16,033	15,964	30,133	29,946
Long-lived assets, net of accumulated depreciation and amortization	2,617	3,574	2,617	3,574
Net assets	12,172	10,976	12,172	10,976
Other Americas
Segment Reporting Information [Line Items]
Revenue	161	189	312	415
Long-lived assets, net of accumulated depreciation and amortization	16	32	16	32
Net assets	$ (52)	$ 150	$ (52)	$ 150