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Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Income - Schedule of Dividends Declared and paid (Details) - $ / shares |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
May 09, 2019 | Feb. 28, 2019 | Nov. 15, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Class Of Stock [Line Items] |  |  |  |  |  |  |
Cash dividends declared per common share (in dollars per share) |  |  |  | $ 0.28 | $ 0.27 | $ 0.56 | $ 0.54
Fourth Quarter Two Thousand Eighteen |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Cash dividends, declared date |  |  |  |  |  | Nov. 15, 2018 |
Cash dividends declared per common share (in dollars per share) |  |  | $ 0.28 |  |  |  |
Cash dividends, record date |  |  |  |  |  | Dec. 31, 2018 |
Cash dividends, paid date |  |  |  |  |  | Jan. 15, 2019 |
First Quarter Two Thousand Nineteen |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Cash dividends, declared date |  |  |  |  |  | Feb. 28, 2019 |
Cash dividends declared per common share (in dollars per share) |  | $ 0.28 |  |  |  |  |
Cash dividends, record date |  |  |  |  |  | Mar. 29, 2019 |
Cash dividends, paid date |  |  |  |  |  | Apr. 15, 2019 |
Second Quarter Two Thousand Nineteen |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Cash dividends, declared date |  |  |  |  |  | May 09, 2019 |
Cash dividends declared per common share (in dollars per share) | $ 0.28 |  |  |  |  |  |
Cash dividends, record date |  |  |  |  |  | Jun. 28, 2019 |
Cash dividends, paid date |  |  |  |  |  | Jul. 15, 2019 |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
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- Definition Date the dividend to be paid was declared, in CCYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
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