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Summary of Significant Accounting Policies (Details 1) $ in Thousands | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Oct. 09, 2018 USD ($) shares | Sep. 01, 2018 USD ($) business shares | Sep. 02, 2017 USD ($) shares | Mar. 03, 2018 USD ($)
Disaggregation of Revenue [Line Items] |  |  |  |
Document period end date |  | Sep. 01, 2018 |  |
Number of businesses which operate under long-term, fixed-price contracts | business |  | 3 |  |
Revenue from businesses which operate under long-term, fixed-price contracts (as a percent) |  | 34.00% |  |
Number of businesses which changed revenue recognition practices due to the adoption of the new guidance | business |  | 1 |  |
Number of businesses that recognize revenue following an over-time output method | business |  | 1 |  |
Revenue from businesses that recognize revenue following an over-time output method (as a percent) |  | 20.00% |  |
Increase to retained earnings |  | $ 402,619 |  | $ 373,259
Share repurchases (in shares) | shares |  |  | 200,000 |
Recognized at the time products are shipped |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Percentage of total revenue |  | 46.00% |  |
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Increase to retained earnings |  |  |  | $ 3,000
AOCI |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Reclassification of tax effects (see Note 1) |  | $ 737 |  |
Retained earnings |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Reclassification of tax effects (see Note 1) |  | (737) |  |
Share repurchases |  |  | $ 9,675 |
New Accounting Pronouncement, Early Adoption, Effect | AOCI | Accounting Standards Update 2018-02 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Reclassification of tax effects (see Note 1) |  | (700) |  |
New Accounting Pronouncement, Early Adoption, Effect | Retained earnings | Accounting Standards Update 2018-02 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Reclassification of tax effects (see Note 1) |  | $ 700 |  |
Share Repurchase Program |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Shares authorized for repurchase (in shares) | shares |  | 2,000,000 |  |
Subsequent Event | Share Repurchase Program |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Share repurchases (in shares) | shares | 200,000 |  |  |
Share repurchases | $ 8,300 |  |  |
Shares authorized for repurchase (in shares) | shares | 3,040,068 |  |  |

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