Commitments and Contingencies Commitment and Contingencies (Details) $ in Millions	Jun. 30, 2019 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Amounts of material contingent liabilities remaining, performance bonds	$ 47.0

Discontinued Operation, Amounts of Material Contingent Liabilities Remaining, Performance Bonds

No definition available.

Name:	tti_DiscontinuedOperationAmountsofMaterialContingentLiabilitiesRemainingPerformanceBonds
Namespace Prefix:	tti_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant