Annual report pursuant to Section 13 and 15(d)

Contract Assets and Liabilities - Narrative (Details)

v3.20.2
Contract Assets and Liabilities - Narrative (Details)
$ in Millions
Sep. 30, 2020
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, amount $ 469.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Expected timing of satisfaction, period 12 months
Revenue, remaining performance obligation, amount $ 421.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Expected timing of satisfaction, period 2 years
Revenue, remaining performance obligation, amount $ 48.7