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Shareholders' Equity (Details) (USD $) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2008 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Dividends |  |  |  |
Cash dividends declared (in dollars per share) |  | $ 0.15 | $ 0.15 | $ 0.15
Dividend restriction, base amount |  | $ 50,000,000 |  |
Dividend restriction, percentage of the cumulative consolidated net income calculated quarterly for each fiscal quarters |  | 50.00% |  |
Dividend restriction, percentage of the net proceeds of all equity issuances made after October 2013 |  | 100.00% |  |
Stock Repurchase Programs |  |  |  |
Authorized common stock repurchase amount | 50,000,000 |  |  |
Shares repurchased |  | 926,000 |  |
Amount of shares repurchased |  | 35,000,000 |  |
Amount available to repurchase shares under stock repurchase program |  | $ 15,000,000 |  |

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- Definition Represents the percentage of the consolidated net income calculated quarterly for the previous four fiscal quarters that is used in the calculation of maximum cash dividends that may be paid as per the restrictions under the credit facility. + References No definition available. + Details
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- Definition Represents the percentage of the net proceeds of all equity issuances made after the closing of the Credit Facility that is used in the calculation of maximum cash dividends that may be paid as per the restrictions under the credit facility. + References No definition available. + Details
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- Definition Represents the base amount that is used in the calculation of maximum cash dividends that may be paid as per the restrictions under the credit facility. + References No definition available. + Details
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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 SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: 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 Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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