Consolidated Balance Sheets (Parenthetical) - $ / shares |
Dec. 31, 2020 |
Dec. 31, 2019 |
---|---|---|
Preferred stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
Preferred stock, shares authorized (in shares) | 2,000,000 | 2,000,000 |
Preferred stock, shares issued (in shares) | 0 | 0 |
Class A Common Stock | ||
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
Common stock, shares authorized (in shares) | 900,000,000 | 900,000,000 |
Common stock, shares issued (in shares) | 147,674,000 | 147,070,000 |
Class B Common Stock | ||
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
Common stock, shares authorized (in shares) | 300,000,000 | 300,000,000 |
Common stock, shares issued (in shares) | 152,117,000 | 152,117,000 |