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Common Shares (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Common shares |  |  |  |
Common stock dividend declared (in dollars per share) |  | $ 0.06 | $ 0.06 |
Cash dividends paid | $ 17,100 | $ 50,924 | $ 69,363 | $ 59,145
Shares repurchased |  | 300,000 | 10,600,000 |
Share price of shares purchased (in dollars per share) | $ 8.64 | $ 8.64 | $ 12.98 | $ 18.19
Total aggregate amount of shares purchased |  | $ 1,700 | $ 99,600 |
Capital Units, Authorized | 825,000,000 | 825,000,000 |  |
Common Stock, Shares Authorized | 800,000,000 | 800,000,000 | 800,000,000 |
Common Stock, Par or Stated Value Per Share | $ 0.001 | $ 0.001 | $ 0.001 |
Preferred Stock, Shares Authorized | 25,000,000 | 25,000,000 |  |
Preferred shares, par value (in dollars per share) | $ 0.001 | $ 0.001 |  |
Preferred shares, shares issued | 0 | 0 |  |
Preferred Stock, Shares Outstanding | 0 | 0 |  |
Treasury shares reissued during the year |  | 0 | 0 | 0
Officers and Directors |  |  |  |
Common shares |  |  |  |
Restricted stock awarded to executive officers, key employees & directors |  | 3,919,696 | 3,530,033 | 1,926,861
Restricted shares awarded, average market price (in dollars per share) | $ 9.85 | $ 9.85 | $ 10.09 | $ 19.53

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- Definition Number of authorized capital units or capital shares. This element is relevant to issuers of face-amount certificates and registered investment companies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04.16(a)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 + 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 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 Face amount or stated value per share of common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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