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Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Schedule of Diluted shares |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations | $ 10,504 | $ 78,626 | $ 887 | $ 8,711 | $ 3,534 | $ (148) | $ 2,451 | $ 4,435 | $ 98,728 | $ 10,272 | $ (18,267)
(Income) from continuing operations attributable to unvested shares |  |  |  |  |  |  |  |  | (1,231) | (62) |
Numerator for basic |  |  |  |  |  |  |  |  | 97,497 | 10,210 | (18,267)
(Income) loss from continuing operations attributable to unvested shares |  |  |  |  |  |  |  |  |  |  |
Numerator for dilutive |  |  |  |  |  |  |  |  | 97,497 | 10,210 | (18,267)
Loss from discontinued operations | (80) | (21) | (343) | (52) | (103) | (174) | (168) | (176) | (496) | (621) | (8,283)
Loss from discontinued operations attributable to unvested shares |  |  |  |  |  |  |  |  | 6 | 4 |
Numerator for basic |  |  |  |  |  |  |  |  | (490) | (617) | (8,283)
Loss from discontinued operations attributable to unvested shares |  |  |  |  |  |  |  |  |  |  |
Numerator for dilutive |  |  |  |  |  |  |  |  | (490) | (617) | (8,283)
Net income (loss) | $ 10,424 | $ 78,605 | $ 544 | $ 8,659 | $ 3,431 | $ (322) | $ 2,283 | $ 4,259 | 98,232 | 9,651 | (26,550)
(Income) loss attributable to unvested shares |  |  |  |  |  |  |  |  | (1,225) | (58) |
Numerator for basic |  |  |  |  |  |  |  |  | 97,007 | 9,593 | (26,550)
Net (income) loss attributable to unvested shares |  |  |  |  |  |  |  |  |  |  |
Numerator for dilutive |  |  |  |  |  |  |  |  | $ 97,007 | $ 9,593 | $ (26,550)
Basic weighted average shares outstanding |  |  |  |  |  |  |  |  | 59,248 | 58,717 | 58,384
Effect of dilutive securities |  |  |  |  |  |  |  |  | 749 | 3 |
Diluted weighted average shares outstanding |  |  |  |  |  |  |  |  | 59,997 | 58,720 | 58,384
Stock options and unvested restricted stock grants excluded from dilutive calculation because they would be anti-dilutive |  |  |  |  |  |  |  |  | 1,316 | 2,823 | 4,363

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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109260490&loc=d3e1448-109256 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
Name: | us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration