Leases - Additional Information (Details)		9 Months Ended
	Jul. 09, 2019 USD ($) ft²	Sep. 30, 2019 USD ($)	Nov. 01, 2019 USD ($)	Jan. 01, 2019 USD ($)
Leases Operating Lease [Line Items]
Finance lease		$ 1
Area under lease | ft²	16,500
Lease term	63 months
Lease commenced date	Nov. 01, 2019
Right-of-use assets from operating leases		18,349,000		$ 22,500,000
Operating lease liabilities		19,453,000		$ 22,500,000
Subsequent Event
Leases Operating Lease [Line Items]
Right-of-use assets from operating leases			$ 2,100,000
Operating lease liabilities			$ 2,100,000
Minimum
Leases Operating Lease [Line Items]
Monthly rent expenses	$ 41,273
Maximum
Leases Operating Lease [Line Items]
Monthly rent expenses	$ 47,846
Warehouse Lease Cancellation
Leases Operating Lease [Line Items]
Lease cancellation expense		200,000
Right use assets		600,000
Operating lease liabilities		$ 600,000