Commitments and Contingencies Estimated Lease Future Amortization Expenses (Details) - Lease $ in Thousands	Dec. 31, 2017 USD ($)
2017	$ (73)
2018	929
2019	1,920
2020	2,395
2021	2,906
Thereafter	19,985
Total future amortization	$ 28,062

Finite-Lived Intangible Assets, Amortization Expense (Benefits), Next Twelve Months

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Finite-Lived Intangible Assets, Amortization Expense (Benefits), Year Five

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Finite-Lived Intangible Assets, Amortization Expense (Benefits), Year Four

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Finite-Lived Intangible Assets, Amortization Expense (Benefits), Year Three

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Finite-Lived Intangible Assets, Amortization Expense (Benefits), Year Two

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Finite-Lived Intangible Assets, Amortization Expense (Benefits), after Year Five

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Total future amortization

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