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Leases - Lease Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jan. 01, 2019
Balance sheet information
ROU assets	$ 44,808	$ 46,700
Lease liabilities, current	9,203
Lease liabilities, non-current	47,007
Total lease liabilities	$ 56,210	$ 58,000
Weighted average remaining lease term	9 years
Weighted average discount rate	6.20%
Cash paid for amounts included in lease liabilities	$ 4,857
ROU assets obtained in exchange for lease obligations	$ 1,324

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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