Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue
Total revenue	$ 3,509,138	$ 3,301,256	$ 3,501,865
Cost of revenue
Total cost of revenue	3,112,739	2,931,762	3,139,220
Gross profit	396,399	369,494	362,645
Selling, general and administrative expenses	294,466	272,610	303,015
Other costs, net	50,217	24,120	101,351
Gain on sales of property and equipment, net	(28,346)	(12,617)	(66,439)
Operating income	80,062	85,381	24,718
Other (income) expense
Loss on debt extinguishment	51,052	0	0
Interest income	(17,538)	(6,528)	(1,176)
Interest expense	18,462	12,624	20,739
Equity in income of affiliates, net	(25,748)	(13,571)	(12,586)
Other (income) expense, net	(6,020)	1,039	(4,386)
Total other (income) expense, net	20,208	(6,436)	2,591
Income before income taxes	59,854	91,817	22,127
Provision for income taxes	30,267	12,960	19,713
Net income	29,587	78,857	2,414
Amount attributable to non-controlling interests	14,012	4,445	7,682
Net income attributable to Granite Construction Incorporated	$ 43,599	$ 83,302	$ 10,096
Net income per share attributable to common shareholders
Basic earnings (loss) per share (USD per share)	$ 0.99	$ 1.87	$ 0.22
Diluted earnings (loss) per share (USD per share)	$ 0.97	$ 1.70	$ 0.21
Weighted average shares outstanding:
Basic (shares)	43,879	44,485	45,788
Diluted (shares)	52,565	52,326	47,599
Construction
Revenue
Total revenue	$ 2,992,254	$ 2,803,935	$ 3,076,190
Cost of revenue
Total cost of revenue	2,667,199	2,500,054	2,772,962
Materials
Revenue
Total revenue	516,884	497,321	425,675
Cost of revenue
Total cost of revenue	$ 445,540	$ 431,708	$ 366,258