Commitments, Contingencies and Guarantees - Additional Information (Details) - USD ($)	9 Months Ended	25 Months Ended	51 Months Ended	95 Months Ended
	Sep. 30, 2019	Dec. 14, 2015	Mar. 27, 2008	Dec. 02, 2011	Dec. 31, 2018
Loss Contingencies [Line Items]
Final Award in favor of company			amount of $11.3 million, consisting of past and future rents owed to the Company, plus interest and costs, as well as an additional $2,512 each day in interest from October 1, 2007 until the date the award is paid	$30,000 to cover the costs of the application
Final Award amount issued			$ 11,300,000
Final Award additional interest			$ 2,512
Final Award settlement cost				$ 30,000
Damages sought		$ 10,400,000
Financial Guarantees	$ 0
Product Warranty Accrual	200,000				$ 200,000
Indemnification of its directors/officers	0				$ 0
Other Indemnification	$ 0
Minimum [Member]
Loss Contingencies [Line Items]
Counterclaim sought		$ 24,000,000.0