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Leases - Future lease payments required for leases that have initial or remaining non-cancelable lease terms (Detail)
$ in Thousands
Mar. 31, 2019
USD ($)
2019 (excluding the three months ended March 31, 2019) $ 6,083
2020 6,109
2021 4,360
2022 3,091
2023 1,488
Thereafter 1,938
Total future lease payments 23,069
Less: Imputed interest (1,619)
Total future lease payments $ 21,450