Summary of Significant Accounting Policies - Deferred Charges (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2011 years	Dec. 31, 2010	Dec. 31, 2009
Summary of Significant Accounting Policies [Abstract]
Deferred Charges Useful Life	5
Deferred Lease Costs Capitalized	$ 10.7	$ 6.1	$ 4.3

Deferred Lease Costs Capitalized - Deferred Lease Costs Capitalized during the period include internal lease costs and amounts paid to third-party brokers.

No definition available.

Name:	skt_DeferredLeaseCostsCapitalized
Namespace Prefix:	skt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration