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Acquisitions (Schedule of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands | Aug. 30, 2019 | Aug. 21, 2018 | Feb. 22, 2017
--- | --- | --- | ---
Apeks |  |  |
Business Acquisition [Line Items] |  |  |
Fair Value | $ 3,400 |  |
Apeks | Trademarks |  |  |
Business Acquisition [Line Items] |  |  |
Indefinite-lived Intangible Assets Acquired | 1,900 |  |
Apeks | Technology |  |  |
Business Acquisition [Line Items] |  |  |
Fair Value | $ 900 |  |
Estimated Useful Life | 7 years |  |
Apeks | Customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Fair Value | $ 600 |  |
Estimated Useful Life | 6 years |  |
SolarBOS |  |  |
Business Acquisition [Line Items] |  |  |
Fair Value |  | $ 1,450 |
SolarBOS | Trademarks |  |  |
Business Acquisition [Line Items] |  |  |
Fair Value |  | $ 300 |
Estimated Useful Life |  | 3 years |
SolarBOS | Technology |  |  |
Business Acquisition [Line Items] |  |  |
Fair Value |  | $ 450 |
Estimated Useful Life |  | 9 years |
SolarBOS | Customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Fair Value |  | $ 700 |
Estimated Useful Life |  | 9 years |
Package Concierge |  |  |
Business Acquisition [Line Items] |  |  |
Fair Value |  |  | $ 3,600
Package Concierge | Trademarks |  |  |
Business Acquisition [Line Items] |  |  |
Fair Value |  |  | 600
Package Concierge | Technology |  |  |
Business Acquisition [Line Items] |  |  |
Fair Value |  |  | $ 1,300
Estimated Useful Life |  |  | 10 years
Package Concierge | Customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Fair Value |  |  | $ 1,700
Estimated Useful Life |  |  | 7 years

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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