Long-Term Debt (Details) (USD $) In Millions, unless otherwise specified	Jul. 24, 2011
Notes (Details)
Borrowing capacity under line of credit	$ 20
Portion of credit facility designated as reserves	3
Portion of credit facility available for use as letters of credit	5
Credit facility uncommited expansion feature	$ 20
Credit facility date of maturity	07-24-2015

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

No definition available.

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