Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Net loss	$ (72,538)	$ (59,761)
Other comprehensive loss, net of tax:
Net unrealized loss on derivatives	(3,360)	(598)
Less: reclassification for net losses included in interest expense	50	(173)
Net change	(3,310)	(771)
Foreign currency translation adjustments, net	(583)	439
Other comprehensive loss	(3,893)	(332)
Comprehensive loss	(76,431)	(60,093)
Non-controlling interests in comprehensive loss	7,168	(2,709)
Comprehensive loss attributable to Granite Construction Incorporated	$ (69,263)	$ (62,802)