Annual report pursuant to Section 13 and 15(d)

Leases - Summary of Annual Scheduled Lease Payments (Parenthetical) (Detail)

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Leases - Summary of Annual Scheduled Lease Payments (Parenthetical) (Detail)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
Leases [Abstract]  
Operating lease legally binding minimum payments for leases not yet commenced $ 1.6