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Related Party Transactions (Narrative) (Details) - Purple Line Segment 2 Expansion Project [Member] - O&G [Member] | 9 Months Ended
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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%

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- Definition Number Of Joint Ventures + References No definition available. + Details
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Namespace Prefix: | tpc_
Data Type: | xbrli:positiveIntegerItemType
Balance Type: | na
Period Type: | instant

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- Definition Percentage represents the Company's ownership percentage in the joint venture. + References No definition available. + Details
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Balance Type: | na
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- Definition Related Party's Ownership Percentage In Joint Venture + References No definition available. + Details
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Namespace Prefix: | tpc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=tpc_OAndGIndustriesIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |