Income Taxes - Summery of Net Impact of the Tax Cuts and Jobs Act (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Line Items]
U.S statutory income tax rate	21.00%	21.00%	35.00%
Non-deductible expenses			(6.80%)
Foreign taxes rate differential			15.10%
Change in valuation allowance			(11.90%)
State income taxes			18.70%
Share based compensation			(4.50%)
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent			(0.80%)
Other			(71.90%)
Effective Income Tax Rate Reconciliation, Percent, Total	18.10%	(38.30%)	(27.10%)
ETR before TCJA
Income Taxes [Line Items]
U.S statutory income tax rate			35.00%
Non-deductible expenses			(6.80%)
Foreign taxes rate differential			15.10%
Change in valuation allowance			(83.40%)
State income taxes			12.80%
Share based compensation			2.00%
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent			(0.90%)
Other			(0.90%)
Effective Income Tax Rate Reconciliation, Percent, Total			(27.10%)
US Tax Cuts & Jobs Act Impact
Income Taxes [Line Items]
U.S statutory income tax rate			0.00%
Non-deductible expenses			0.00%
Foreign taxes rate differential			0.00%
Change in valuation allowance			71.50%
State income taxes			5.90%
Share based compensation			(6.50%)
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent			0.10%
Other			(71.00%)
Effective Income Tax Rate Reconciliation, Percent, Total			0.00%