Overview and Basis of Presentation - Additional Information (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Number of Shares Outstanding, Diluted	214,212,292	204,709,085	210,127,323	184,851,805
Stock Options Expense
Number of Shares Outstanding, Diluted			5,782,599	6,031,833
Weighted Average Number Diluted Shares Outstanding Adjustment	1,928,946
Restricted Stock Units
Number of Shares Outstanding, Diluted			688,507	1,479,038
Weighted Average Number Diluted Shares Outstanding Adjustment	151,458
Warrant
Number of Shares Outstanding, Diluted			2,520,794	2,041,735
Weighted Average Number Diluted Shares Outstanding Adjustment	141,482