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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Earnings per share — Basic: |  |  |  |
Earnings from continuing operations | $ 58,913 | $ 85,138 | $ 148,535 | $ 215,365
Less: Earnings allocated to unvested stock | (222) | (261) | (536) | (674)
Earnings from continuing operations available to common shareholders — Basic | $ 58,691 | $ 84,877 | $ 147,999 | $ 214,691
Weighted average common shares outstanding - Basic (in shares) | 52,405 | 52,953 | 52,671 | 53,029
Earnings from continuing operations per common share — Basic (in dollars per share) | $ 1.12 | $ 1.60 | $ 2.81 | $ 4.05
Earnings per share — Diluted: |  |  |  |
Earnings from continuing operations | $ 58,913 | $ 85,138 | $ 148,535 | $ 215,365
Less: Earnings allocated to unvested stock | (222) | (260) | (536) | (672)
Earnings from continuing operations available to common shareholders — Diluted | $ 58,691 | $ 84,878 | $ 147,999 | $ 214,693
Weighted average common shares outstanding - Basic (in shares) | 52,405 | 52,953 | 52,671 | 53,029
Effect of dilutive equity awards (in shares) | 371 | 338 | 356 | 315
Weighted average common shares outstanding — Diluted (shares) | 52,776 | 53,291 | 53,027 | 53,344
Earnings from continuing operations per common share — Diluted (in dollars per share) | $ 1.11 | $ 1.59 | $ 2.79 | $ 4.02
Anti-dilutive equity awards not included above (in shares) | 843 | 653 | 889 | 836

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- Definition Amount after tax of income (loss) from continuing operations attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.13) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4613673-111683 + Details
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