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Capital Stock - Schedule of Dividends Payable (Details) - $ / shares | Jan. 12, 2018 | Oct. 12, 2017 | Jul. 12, 2017 | Apr. 12, 2017 | Jan. 12, 2017 | Oct. 12, 2016 | Jul. 12, 2016 | Apr. 12, 2016
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Dividends Payable [Line Items] |  |  |  |  |  |  |  |
Payment Date |  | Oct. 12, 2017 | Jul. 12, 2017 | Apr. 12, 2017 | Jan. 12, 2017 | Oct. 12, 2016 | Jul. 12, 2016 | Apr. 12, 2016
Record Date |  | Sep. 29, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 30, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016
Dividends per share (in dollars per share) |  | $ 0.1250 | $ 0.1250 | $ 0.125 | $ 0.125 | $ 0.1250 | $ 0.1250 | $ 0.125
Subsequent Event |  |  |  |  |  |  |  |
Dividends Payable [Line Items] |  |  |  |  |  |  |  |
Payment Date | Jan. 12, 2018 |  |  |  |  |  |  |
Record Date | Dec. 29, 2017 |  |  |  |  |  |  |
Dividends per share (in dollars per share) | $ 0.125 |  |  |  |  |  |  |

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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -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 holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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