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Business Segment Information - Additional Information (Detail)
$ in Millions
3 Months Ended
Mar. 31, 2020
USD ($)
segment
Segment Reporting [Abstract]  
Number of reportable segments | segment 2
Performance obligation | $ $ 202.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01  
Segment Reporting Information [Line Items]  
Remaining performance obligation, percentage 96.00%
Remaining performance obligation, expected timing 1 year