Overview and Basis of Presentation - Additional Information (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Number of Shares Outstanding, Diluted	230,879,437	214,212,292	225,411,773	210,127,323
Stock Options Expense
Number of Shares Outstanding, Diluted			5,625,661	5,782,599
Weighted Average Number Diluted Shares Outstanding Adjustment	3,022,973	1,928,947	3,041,286
Restricted Stock Units
Number of Shares Outstanding, Diluted			352,936	688,507
Weighted Average Number Diluted Shares Outstanding Adjustment	223,661	151,458	196,043
Warrant
Number of Shares Outstanding, Diluted			3,591,975	2,520,794
Weighted Average Number Diluted Shares Outstanding Adjustment	1,103,132	141,482	1,114,574