v3.20.2

Consolidated Balance Sheets (Parenthetical) | Jun. 30, 2020 $ / shares
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Class A common stock |
Common stock, par value (in dollars per share) | $ 0.01
Class B common stock |
Common stock, par value (in dollars per share) | 0.01
Class C common stock |
Common stock, par value (in dollars per share) | $ 0.01

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