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Investments in Unconsolidated Real Estate Joint Ventures (Summary Statements of Operations for Unconsolidated Joint Ventures) (Details) (USD $)
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3 Months Ended | 9 Months Ended | 12 Months Ended | ||||||
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
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Sep. 30, 2012
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Dec. 31, 2012
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Partnership Interest [Member]
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| Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items] | |||||||||
| Revenues (a) | $ 29,013,000 | [1] | $ 11,985,000 | $ 70,961,000 | [1] | $ 35,249,000 | |||
| Property operating | 7,808,000 | 5,521,000 | 25,440,000 | 15,495,000 | |||||
| General and administrative | 629,000 | 365,000 | 962,000 | 765,000 | |||||
| Acquisition costs | 19,000 | 0 | 474,000 | 704,000 | |||||
| Abandoned development costs | 19,000 | 0 | 153,000 | 1,390,000 | |||||
| Impairment Charge | 0 | 0 | 0 | 420,000 | |||||
| Depreciation and amortization | 6,232,000 | 4,283,000 | 21,200,000 | 13,191,000 | |||||
| Total expenses | 14,707,000 | 10,169,000 | 48,229,000 | 31,965,000 | |||||
| Operating income | 14,306,000 | 1,816,000 | 22,732,000 | 3,284,000 | |||||
| Gains (losses) on extinguishment of debt | 13,820,000 | 0 | 13,820,000 | 0 | |||||
| Interest expense | (2,840,000) | (3,540,000) | (10,406,000) | (10,967,000) | |||||
| Net income | 25,286,000 | (1,724,000) | 26,146,000 | (7,683,000) | |||||
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Deer Park [Member]
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| Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items] | |||||||||
| Gains (losses) on extinguishment of debt | 13,800,000 | ||||||||
| Settlement of lawsuit | 9,500,000 | 9,500,000 | |||||||
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Tanger Factory Outlet Centers, Inc [Member]
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| Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items] | |||||||||
| Revenues (a) | 97,903,000 | 90,483,000 | 277,607,000 | 262,061,000 | |||||
| Property operating | 29,863,000 | 27,614,000 | 86,819,000 | 81,679,000 | |||||
| General and administrative | 9,754,000 | 9,018,000 | 29,240,000 | 27,737,000 | |||||
| Acquisition costs | 532,000 | 0 | 963,000 | 0 | |||||
| Depreciation and amortization | 24,223,000 | 24,809,000 | 68,683,000 | 75,247,000 | |||||
| Total expenses | 64,372,000 | 61,441,000 | 185,705,000 | 184,663,000 | |||||
| Operating income | 33,531,000 | 29,042,000 | 91,902,000 | 77,398,000 | |||||
| Interest expense | (12,367,000) | (12,317,000) | (37,826,000) | (37,062,000) | |||||
| Net income | 56,180,000 | 16,170,000 | 90,185,000 | 37,462,000 | 56,476,000 | ||||
| The Company and Operating Partnership's share of net income (loss) of unconsolidated joint ventures | 9,014,000 | (555,000) | 10,107,000 | (2,874,000) | |||||
| The Company and Operating Partnership's share of depreciation and impairment charges (real estate related) of unconsolidated joint ventures | 2,861,000 | 1,641,000 | 9,465,000 | 5,249,000 | |||||
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Deer Park [Member]
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| Summary Statements of Operations of Unconsolidated Joint Ventures [Line Items] | |||||||||
| Acquisition costs | $ 772,000 | ||||||||
| Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage | 33.33% | 33.33% | |||||||
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