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Leases - Summary of Maturities of Operating Lease Liabilities (Detail) $ in Thousands	Jun. 30, 2019 USD ($)
Leases [Abstract]
2019 (excluding the six months ended June 30, 2019)	$ 5,268
2020	9,195
2021	6,668
2022	4,625
2023	2,663
Thereafter	6,552
Total lease payments	34,971
Less imputed interest	(3,639)
Total	$ 31,332

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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
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
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