Summary of Significant Accounting Policies - Narrative (Details)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncement Or Change In Accounting Principle Recognized As A Percent Of Revenue	3.00%	3.00%

New Accounting Pronouncement Or Change In Accounting Principle Recognized As A Percent Of Revenue

No definition available.

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Namespace Prefix:	skt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration