Annual report pursuant to Section 13 and 15(d)

Revenue, Contract Assets and Liabilities and Other Contract Matters - Summary of Remaining Performance Obligation (Details 1)

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Revenue, Contract Assets and Liabilities and Other Contract Matters - Summary of Remaining Performance Obligation (Details 1)
$ in Thousands
Dec. 31, 2019
USD ($)
Revenue From Contract With Customer [Abstract]  
Remaining performance obligation $ 415,438