XML 23 R46.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Dropdowns - Additional Information (Detail) (USD $) In Millions, unless otherwise specified |  | 12 Months Ended |
--- | --- | --- | ---
Oct. 27, 2011 Vessel | Dec. 31, 2010 Conventional Tankers [Member] Vessel | Mar. 17, 2010 Conventional Tankers [Member] Tanker
Business Acquisition [Line Items] |  |  |
Number of vessels acquired | 3 | 3 | 3
Increase in Partnership's net income due to effect of adjustment in common control exchanges |  | $ 2.3 |

X
- Definition Adjustment to Partnership's net income (loss) as a result of business acquisitions between entities under common control. + References No definition available. + Details
Name: | tgp_IncreaseInPartnershipsNetIncomeLossDueToEffectOfAdjustmentInCommonControlExchanges
Namespace Prefix: | tgp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of vessels acquired. + References No definition available. + Details
Name: | tgp_NumberOfVesselsAcquired
Namespace Prefix: | tgp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration