Commitments and Contingencies (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||
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Dec. 31, 2017 | ||||||||||||||||||||||||||||||||||||
| Commitments and Contingencies | ||||||||||||||||||||||||||||||||||||
| Schedule of future minimum rental payments required under non-cancelable operating leases | Future minimum rental payments required under non‑cancelable operating leases with initial or remaining terms in excess of one year consist of the following as of December 31, 2017 (in thousands):
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