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Interim Results - Summary of Results of Operations for Quarterly Periods (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
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Dec. 31, 2013
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Quarterly Financial Information Disclosure [Abstract] | |||||||||||
| Revenue | $ 50,146 | $ 49,756 | $ 48,809 | $ 49,186 | $ 48,287 | $ 47,443 | $ 47,373 | $ 46,989 | $ 197,897 | $ 190,092 | $ 173,878 |
| Operating income before loss on early extinguishment of debt, gain on casualty settlement, discontinued operations and noncontrolling interest | 12,211 | 11,959 | 7,711 | 3,388 | 8,020 | 8,160 | 9,598 | 9,318 | 35,269 | 35,096 | 31,436 |
| Gain on sales of properties | 3,453 | 1,057 | 0 | 0 | 0 | 4,510 | 0 | ||||
| Net income attributable to Saul Centers, Inc. | 9,896 | 9,398 | 6,594 | 4,984 | 9,483 | 7,948 | 8,079 | 7,864 | 30,872 | 33,374 | 26,733 |
| Net income available to common shareholders | $ 6,690 | $ 6,192 | $ 3,387 | $ (4,608) | $ 5,698 | $ 4,163 | $ 4,294 | $ 4,079 | $ 11,661 | $ 18,234 | $ 11,593 |
| Net income (loss) available to common shareholders per diluted share (in usd per share) | $ 0.33 | $ 0.30 | $ 0.17 | $ (0.23) | $ 0.29 | $ 0.21 | $ 0.22 | $ 0.21 | |||