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Leases - Schedule of Operating Lease Maturity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Leases [Abstract]
2019 (remaining nine months)	$ 1,550
2020	2,132
2021	2,157
2022	2,182
2023	2,206
2024	2,225
Thereafter	72,797
Total lease payments	85,249
Present value of lease liabilities	25,623	$ 25,715
Less: Imputed interest	59,626
Non-variable lease payments	$ 3,400

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-SubTopic 20
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