Equity (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($) $ / shares shares
Equity [Abstract]
Shares repurchased (in shares) | shares	9,049,882
Average price paid per share (in dollars per share) | $ / shares	$ 23.66
Total cost	$ 214.1
Remaining authorized repurchase amount	$ 353.2