Equity (Tables)	3 Months Ended
Mar. 31, 2017
Equity [Abstract]
Changes in Equity Table

Changes in equity during the reporting period, including: (1) balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings; (2) accumulated balance for each classification of other comprehensive income and total amount of comprehensive income; (3) amount and nature of changes in separate accounts, including the number of shares authorized and outstanding, number of shares issued upon exercise and conversion, and for other comprehensive income, the adjustments for reclassifications to net income; and (4) dividends paid or received in the aggregate for each class of stock for each period presented.

No definition available.

Name:	tti_Changesinequitydisclosuretextblock
Namespace Prefix:	tti_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration