Equity (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($) $ / shares shares
Class of Stock [Line Items]
Remaining authorized for share repurchases | $	$ 678.4
Class A
Class of Stock [Line Items]
Stock repurchased (in shares) | shares	666,600
Average price paid per share (in dollars per share) | $ / shares	$ 24.43
Class C
Class of Stock [Line Items]
Stock repurchased (in shares) | shares	12,211,300
Average price paid per share (in dollars per share) | $ / shares	$ 25.15
Aggregate purchase price | $	$ 323.4