CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
Revenues	$ 551,333	$ 431,842	$ 1,406,341	$ 1,060,851
Cost of revenues	475,868	375,551	1,225,243	922,960
Gross profit	75,465	56,291	181,098	137,891
Selling, general and administrative expenses	36,478	26,014	96,657	69,684
Operating income	38,987	30,277	84,441	68,207
Other income (expense):
Income (loss) from non-consolidated entities	113	(159)	169	895
Foreign exchange gain (loss)	91	18	3	(30)
Other expense	(376)	(382)	(809)	(961)
Interest income	32	96	95	143
Interest expense	(1,579)	(937)	(4,501)	(3,044)
Income before provision for income taxes	37,268	28,913	79,398	65,210
Provision for income taxes	(14,075)	(10,965)	(30,272)	(24,875)
Net income	23,193	17,948	49,126	40,335
Less net income attributable to noncontrolling interests	(1,348)	(432)	(1,947)	(600)
Net income attributable to Primoris	$ 21,845	$ 17,516	$ 47,179	$ 39,735
Earnings per share:
Basic (in dollars per share)	$ 0.42	$ 0.34	$ 0.92	$ 0.77
Diluted (in dollars per share)	$ 0.42	$ 0.34	$ 0.91	$ 0.77
Weighted average common shares outstanding:
Basic (in shares)	51,568	51,398	51,529	51,387
Diluted (in shares)	51,671	51,404	51,595	51,402