CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenue
Construction	$ 260,600	$ 237,943	$ 353,292	$ 319,129
Large project construction	162,338	153,328	300,158	259,653
Construction materials	58,114	61,089	81,912	87,253
Real estate	3,622	1,844	6,043	8,852
Total revenue	484,674	454,204	741,405	674,887
Cost of revenue
Construction	237,211	215,042	324,350	294,382
Large project construction	149,680	131,493	256,202	228,335
Construction materials	49,644	56,609	80,712	89,898
Real estate	3,183	1,362	5,197	6,860
Total cost of revenue	439,718	404,506	666,461	619,475
Gross profit	44,956	49,698	74,944	55,412
Selling, general and administrative expenses	38,793	51,357	82,165	106,649
Gain on sales of property and equipment	3,270	3,800	5,974	8,252
Operating income (loss)	9,433	2,141	(1,247)	(42,985)
Other expense
Interest income	575	1,098	1,819	2,037
Interest expense	(879)	(3,013)	(4,235)	(6,747)
Equity in loss of affiliates	(181)	(387)	(438)	(706)
Other (expense) income, net	(688)	1,934	(118)	4,831
Total other expense	(1,173)	(368)	(2,972)	(585)
Income (loss) before provisin for (benefit from) income taxes	8,260	1,773	(4,219)	(43,570)
Provision for (benefit from) income taxes	2,087	4,406	(3,136)	(3,207)
Net income (loss)	6,173	(2,633)	(1,083)	(40,363)
Amount attributable to noncontrolling interests	(1,227)	(4,058)	(2,978)	(7,282)
Net income (loss) attributable to Granite Construction Incorporated	$ 4,946	$ (6,691)	$ (4,061)	$ (47,645)
Net income (loss) per share attributable to common shareholders (see Note 14)
Basic	$ 0.13	$ (0.18)	$ (0.11)	$ (1.26)
Diluted	$ 0.13	$ (0.18)	$ (0.11)	$ (1.26)
Weighted average shares of common stock
Basic	38,140	37,850	38,052	37,770
Diluted	38,479	37,850	38,052	37,770
Dividends per common share	$ 0.13	$ 0.13	$ 0.26	$ 0.26