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Quarterly Dividends Declared (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Oct. 31, 2014
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Jul. 31, 2014
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Apr. 30, 2014
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Jan. 31, 2014
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Dec. 31, 2012
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Oct. 31, 2012
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Aug. 31, 2012
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Jul. 31, 2012
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Apr. 30, 2012
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Jan. 31, 2012
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Dec. 31, 2014
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Dec. 31, 2012
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| Dividend Declared [Line Items] | ||||||||||||
| Approval Date | 2014-10 | 2014-07 | 2014-04 | 2014-01 | 2012-12 | 2012-10 | 2012-08 | 2012-07 | 2012-04 | 2012-01 | 2012-12 | |
| Per share dividend | $ 0.020 | $ 0.020 | $ 0.020 | $ 0.020 | $ 0.140 | $ 0.035 | $ 0.015 | $ 0.020 | $ 0.020 | $ 0.020 | ||
| Date of record | Nov. 07, 2014 | Aug. 05, 2014 | May 05, 2014 | Feb. 07, 2014 | Dec. 18, 2012 | Nov. 02, 2012 | Aug. 16, 2012 | Aug. 03, 2012 | May 04, 2014 | Feb. 03, 2012 | ||
| Total amount | $ 857 | $ 856 | $ 846 | $ 771 | $ 5,300 | $ 1,300 | $ 566 | $ 755 | $ 743 | $ 751 | $ 3,330 | $ 9,376 |
| Payment date | Nov. 18, 2014 | Aug. 15, 2014 | May 15, 2014 | Feb. 18, 2014 | Dec. 31, 2012 | Nov. 15, 2012 | Aug. 31, 2012 | Aug. 15, 2012 | May 15, 2012 | Feb. 15, 2012 | ||