Interim Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (74,001)	$ (59,260)
Other comprehensive loss, net of tax:
Interest rate swaps	(2,890)	(1,946)
Actuarial gain (loss)	(67)	19
Foreign currency translation adjustments	(5,513)	(1,824)
Total other comprehensive loss, net of tax	(8,470)	(3,751)
Comprehensive loss	$ (82,471)	$ (63,011)