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Shareholders' Equity - Schedule of Dividend Declared (Detail) | 12 Months Ended
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Dec. 31, 2018 $ / shares
Record Date One [Member] |
Dividends Declared [Line Items] |
Dividend Per Share | $ 0.075
Record Date | Aug. 07, 2017
Payment Date | Sep. 29, 2017
Record Date Two [Member] |
Dividends Declared [Line Items] |
Dividend Per Share | $ 0.075
Record Date | May 10, 2017
Payment Date | Jun. 30, 2017
Record Date Three [Member] |
Dividends Declared [Line Items] |
Dividend Per Share | $ 0.075
Record Date | Mar. 06, 2017
Payment Date | Mar. 31, 2017
Record Date Four [Member] |
Dividends Declared [Line Items] |
Dividend Per Share | $ 0.066
Record Date | Dec. 16, 2016
Payment Date | Dec. 30, 2016
Record Date Five [Member] |
Dividends Declared [Line Items] |
Dividend Per Share | $ 0.066
Record Date | Sep. 16, 2016
Payment Date | Sep. 30, 2016
Record Date Six [Member] |
Dividends Declared [Line Items] |
Dividend Per Share | $ 0.066
Record Date | Jun. 18, 2016
Payment Date | Jun. 30, 2016
Record Date Seven [Member] |
Dividends Declared [Line Items] |
Dividend Per Share | $ 0.066
Record Date | Mar. 18, 2016
Payment Date | Mar. 31, 2016

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- Definition Dividends Declared [Line Items] + References No definition available. + 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 The per share amount of a dividend declared, but not paid, as of the financial reporting date. + 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 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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