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Selected Unaudited Quarterly Information (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Selected Unaudited Quarterly Information |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 62,489 us-gaap_Revenues | $ 61,190 us-gaap_Revenues | $ 62,741 us-gaap_Revenues | $ 63,263 us-gaap_Revenues | $ 63,024 us-gaap_Revenues | $ 58,446 us-gaap_Revenues | $ 47,671 us-gaap_Revenues | $ 44,495 us-gaap_Revenues | $ 249,683 us-gaap_Revenues | $ 213,636 us-gaap_Revenues | $ 161,580 us-gaap_Revenues
Income from continuing operations | 4,295 us-gaap_IncomeLossFromContinuingOperations | 1,567 us-gaap_IncomeLossFromContinuingOperations | 3,713 us-gaap_IncomeLossFromContinuingOperations | 3,573 us-gaap_IncomeLossFromContinuingOperations | 4,352 us-gaap_IncomeLossFromContinuingOperations | 3,996 us-gaap_IncomeLossFromContinuingOperations | 4,643 us-gaap_IncomeLossFromContinuingOperations | 4,303 us-gaap_IncomeLossFromContinuingOperations | 13,148 us-gaap_IncomeLossFromContinuingOperations | 17,294 us-gaap_IncomeLossFromContinuingOperations | 22,950 us-gaap_IncomeLossFromContinuingOperations
Income from discontinued operations |  |  |  |  | 2,239 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 98 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 98 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 98 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity |  | 2,533 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | (15,317)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Net income | $ 4,295 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 1,567 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 3,713 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 3,573 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 6,591 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 4,094 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 4,741 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 4,401 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 13,148 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 19,827 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 7,633 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Basic and diluted net income per share (in dollars per share) | $ 0.04 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.02 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.04 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.04 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.07 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.04 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.05 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.05 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.13 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.21 us-gaap_EarningsPerShareBasicAndDiluted | $ 0.09 us-gaap_EarningsPerShareBasicAndDiluted
Weighted average number of shares outstanding, basic and diluted (in shares) | 100,187,000 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 100,187,000 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 100,187,000 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 100,187,000 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 100,187,000 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 100,187,000 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 91,847,000 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 82,937,000 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 100,187,405 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 93,855,000 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 82,937,000 us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted

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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References No definition available. + Details
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- Definition Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests. + 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=31042434&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 810 -SubTopic 10 -Section 45 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4613673-111683 Reference 4: 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=26872669&loc=d3e20235-122688 + Details
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- Definition Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1377-109256 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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