Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Summary of Future Minimum Lease Payments and Rentals under Lease Agreements For Office Space (Detail)

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Commitments and Contingencies - Summary of Future Minimum Lease Payments and Rentals under Lease Agreements For Office Space (Detail)
$ in Thousands
Dec. 31, 2018
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
Minimum Lease Commitments, 2019 $ 6,182
Minimum Lease Commitments, 2020 6,180
Minimum Lease Commitments, 2021 6,193
Minimum Lease Commitments, 2022 6,076
Minimum Lease Commitments, 2023 5,770
Minimum Lease Commitments, Thereafter 27,827
Minimum Lease Commitments, Total $ 58,228
Under ASC 842:Weighted-average remaining lease term – operating leases (months) 113 months 9 days
Non-cancellable Subleases, 2019 $ (117)
Non-cancellable Subleases, 2020 (117)
Non-cancellable Subleases, 2021 (117)
Non-cancellable Subleases, 2022 (117)
Non-cancellable Subleases, 2023 (20)
Non-cancellable Subleases, Total (488)
Minimum Net Rentals, 2019 6,065
Minimum Net Rentals, 2020 6,063
Minimum Net Rentals, 2021 6,076
Minimum Net Rentals, 2022 5,959
Minimum Net Rentals, 2023 5,750
Minimum Net Rentals, Thereafter 27,827
Minimum Net Rentals, Total $ 57,740