Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Income - ATM Program - Additional Information (Details) - ATM Program $ / shares in Units, $ in Millions	3 Months Ended
Mar. 31, 2019 USD ($) $ / shares shares
Class Of Stock [Line Items]
Issuance of ordinary shares (in shares) \| shares	970,835
Gross proceeds	$ 28.2
Weighted Average Share Price \| $ / shares	$ 29.08
Proceeds from stock plans net of issuance costs	$ 27.8

Number of new stock issued during the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
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