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Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Income - ATM Program - Additional Information (Details) - ATM Program - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Class Of Stock [Line Items]
Issuance of ordinary shares (in shares)	1,696,516	2,667,351
Gross proceeds	$ 48.0	$ 76.2
Weighted Average Share Price	$ 28.29	$ 28.58
Proceeds from stock plans net of issuance costs	$ 47.3	$ 75.1
Purchase new program included an optional forward purchase component	$ 250.0

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