Related Party Transactions (Narrative) (Details) - Purple Line Segment 2 Expansion Project [Member] - O&G [Member]	9 Months Ended
Sep. 30, 2018 agreement
Related Party Transaction, Due from (to) Related Party [Abstract]
Number of joint ventures	1
Ownership percentage in joint venture	75.00%
Related party's ownership percentage in joint venture	25.00%

Percentage represents the Company's ownership percentage in the joint venture.

No definition available.

Name:	tpc_OwnershipPercentageInJointVenture
Namespace Prefix:	tpc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration