CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
CONSOLIDATED STATEMENTS OF INCOME
Revenue	$ 631,165	$ 456,811	$ 1,192,667	$ 887,257
Cost of revenue	546,682	413,526	1,053,131	804,695
Gross profit	84,483	43,285	139,536	82,562
Selling, general and administrative expenses	45,977	32,498	85,831	65,156
Operating income	38,506	10,787	53,705	17,406
Other income (expense):
Foreign exchange gain (loss)	109	21	132	380
Other expense	(13)		(13)
Interest income	114	52	183	91
Interest expense	(2,145)	(2,240)	(4,407)	(4,508)
Income before provision for income taxes	36,571	8,620	49,600	13,369
Provision for income taxes	(14,175)	(3,333)	(18,692)	(5,166)
Net income	22,396	5,287	30,908	8,203
Less net income attributable to noncontrolling interests	(851)	(231)	(1,672)	(454)
Net income attributable to Primoris	$ 21,545	$ 5,056	$ 29,236	$ 7,749
Earnings per share:
Basic (in dollars per share)	$ 0.42	$ 0.10	$ 0.57	$ 0.15
Diluted (in dollars per share)	$ 0.42	$ 0.10	$ 0.56	$ 0.15
Weighted average common shares outstanding:
Basic (in shares)	51,437	51,772	51,515	51,749
Diluted (in shares)	51,688	52,022	51,771	51,950