Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
2019 Equity Distribution Agreement
Selling price per share		$ 38.50	$ 9.37
2019 Underwriting Agreement
Selling price per share			$ 10.34
2021 Equity Distribution Agreement
Selling price per share	$ 64.83
September 2020 Equity Distribution Agreement
Selling price per share		42.90
November 2020 Equity Distribution Agreement
Selling price per share		$ 48.70