XML 33 R23.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Summary of Significant Accounting Policies (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2018
Accounting Policies [Abstract] |
Schedule of Construction in Progress | Construction in progress as of June 30, 2018 and December 31, 2017, is composed of the following:
(in thousands) |  | June 30, 2018 |  | December 31, 2017
Glebe Road |  | $ | 117,156 |  |  | $ | 83,462 |
Ashbrook Marketplace |  | 9,519 |  |  | — |
Other |  | 12,610 |  |  | 7,652 |
Total |  | $ | 139,285 |  |  | $ | 91,114 |
Basic and Diluted Shares Outstanding | The following table sets forth, for the indicated periods, weighted averages of the number of common shares outstanding, basic and dilutive, the effect of dilutive options and the number of options which are not dilutive because the average price of the Company's common stock was less than the exercise prices. The treasury stock method was used to measure the effect of the dilution.
| Three months ended June 30, |  | Six months ended June 30,
(In thousands) | 2018 |  | 2017 |  | 2018 |  | 2017
Weighted average common stock outstanding-Basic | 22,260 |  |  | 21,846 |  |  | 22,219 |  |  | 21,796 |
Effect of dilutive options | 28 |  |  | 81 |  |  | 34 |  |  | 114 |
Weighted average common stock outstanding-Diluted | 22,288 |  |  | 21,927 |  |  | 22,253 |  |  | 21,910 |
Non-dilutive options | 635 |  |  | — |  |  | 541 |  |  | — |
Years non-dilutive options were issued | 2015, 2016 and 2017 |  |  |  | 2015, 2016 and 2017 |  |

X
- Definition Schedule of Construction in Progress [Table Text Block] + References No definition available. + Details
Name: | bfs_ScheduleofConstructioninProgressTableTextBlock
Namespace Prefix: | bfs_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration