Summary of Significant Accounting Policies - Additional Information (Details 2) - USD ($)	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Operating Lease, Liability	$ 27,713,000	$ 24,792
Cash and Cash Equivalents
Maturity period of highly liquid investments	3 months
Operating Lease, Right-of-Use Asset	$ 24,644,000	$ 22,066	$ 0