Revenue, Receivables and Contract Assets and Liabilities (Details 5) $ in Thousands	Mar. 02, 2019 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-03-03
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total	$ 376,027
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-03-03
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total	264,390
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-03-03
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total	93,660
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Total	$ 734,077