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Commitments and Contingencies - Additional Information - Legal Proceedings and Claims - Class Action Complaint (Details) - $ / shares | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Loss Contingencies [Line Items] |  |  |  |  |
Quarterly dividend (dollars per share) |  |  | $ 0.22 | $ 1.7325 | $ 1.265
Class Action Complaint [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Quarterly dividend (dollars per share) | $ 0.055 | $ 0.550 |  |  |

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- Definition Aggregate dividends declared 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 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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- Details
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