Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Aug. 01, 2016
Document and Entity Information
Entity Registrant Name	TUTOR PERINI Corp
Entity Central Index Key	0000077543
Document Type	10-Q
Document Period End Date	Jun. 30, 2016
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		49,169,813
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2