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COMMON SHARE REPURCHASE PROGRAM (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 shares | Sep. 30, 2015 shares
COMMON SHARE REPURCHASE PROGRAM |  |
Shares authorized for repurchase under share repurchase program | 45,000,000 | 45,000,000
Shares purchased in the open market under share repurchase program | 2,369,771 | 4,715,456
Remaining common shares available for repurchase under the share repurchase program | 6,590,680 | 6,590,680

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Balance Type: | na
Period Type: | duration

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- Definition The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Definition The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
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- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
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