Note 17 - Comparative Prior Year Data - Summary of Comparative Prior Year Data (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Revenue	$ 420,317	$ 659,205	$ 535,412
Warrant contra revenue	0	(1,295)	0
Net revenue	420,317	657,910	535,412
Cost of services	(355,591)	(547,014)	(449,529)
Gross Profit	64,726	110,896	85,883
Selling, general and administrative expenses	(60,020)	(91,363)	(74,425)
Impairment losses and restructuring cost	(3,962)	(9,827)	(5,830)
Acquisition related cost	(7,036)	11	(11,425)
Operating Income/ (Loss)	(6,292)	9,717	(5,797)
Share of profit/ (loss) of equity-accounted investees	115	(226)	179
Interest and other income		858	649
Interest and other cost		(16,682)	(15,998)
Exchange gain (loss), net	(1,309)	(2,157)	(2,588)
Loss before income taxes	(18,706)	(8,490)	(23,555)
Current tax	3,563	5,892	4,812
Deferred tax (benefit) / expenses	7	(1,101)	(912)
Tax expense	3,570	4,791	3,900
Net loss	$ (22,276)	$ (13,281)	$ (27,455)