Acquisitions and Dispositions (Details 4) (USD $) In Millions, unless otherwise specified	Jul. 20, 2011
Notes (Details)
Gross purchase price of tangible asset, subject to adjustment	$ 62.8
Amount of purchase price held in escrow subject to terms of purchase agreement	$ 20.8

The gross purchase price, subject to adjustment, associated with the acquisition of a long-lived, physical asset that is used in the normal conduct of business and is not intended for resale.

No definition available.

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