Note 4 - (Details)	9 Months Ended
Sep. 30, 2013
Conversion Of Stock [Abstract]
Number Of Shares Used In Ratio	3,000

Number of shares used as part of calculation of ratio of Certificates of Proprietary Interest to Sub-share Certificates in Certificates of Proprietary Interest .

No definition available.

Name:	tpl_NumberOfSharesUsedInRatio
Namespace Prefix:	tpl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration