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Leases - Summary of Operating Leases Under all Non-Cancellable Operating Leases (Detail) $ in Thousands	Jun. 30, 2019 USD ($)
Leases [Abstract]
2019 (excluding the six-month period ended June 30, 2019)	$ 2,755
2020	4,489
2021	2,555
2022	1,490
2023	790
2024 or later	2,609
Total future minimum lease payments	14,688
Less imputed interest	(1,916)
Total	$ 12,772

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Amount of lessee's undiscounted obligation for lease payments for operating lease.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
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