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CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2017 CNY (¥) ¥ / shares shares | Dec. 31, 2017 USD ($) $ / shares shares | Dec. 31, 2016 CNY (¥) ¥ / shares shares | Dec. 31, 2015 CNY (¥) ¥ / shares shares
Revenues, net of business tax, value-added tax and related surcharges (including financing lease income and management service income from related party amounting to RMB252, RMB7,988 and RMB10,695 (US$1,644) for the years ended December 31, 2015, 2016 and 2017, respectively) | ¥ 330,977 | $ 50,870 | ¥ 455,042 | ¥ 616,485
Cost of revenues | (232,979) | (35,807) | (286,543) | (353,336)
Gross profit | 97,998 | 15,063 | 168,499 | 263,149
Operating expenses: |  |  |  |
Selling expenses | (43,608) | (6,702) | (70,093) | (112,815)
General and administrative expenses | (237,646) | (36,526) | (205,908) | (132,952)
Impairment of long-lived assets | (28,600) | (4,396) | (61,124) | (23,125)
Operating loss | (211,856) | (32,561) | (168,626) | (5,743)
Interest expense (including interest expense to related party amounting to RMB6,705, RMB15,073 and RMB 46,355 (US$7,125) for the years ended December 31, 2015, 2016 and 2017, respectively) | (89,959) | (13,826) | (89,327) | (53,214)
Foreign exchange gain | 4,023 | 618 | 13,472 | 10,348
Loss on disposal of long-lived assets | (31,437) | (4,832) | (7,619) | (4,220)
Interest income | 12,077 | 1,856 | 27,982 | 22,447
Changes in fair value of derivatives | 0 | 0 | 713 | 33,731
Loss on debt extinguishment | 0 | 0 | 0 | (36,648)
(Loss) income from equity method investments | 1,454 | 223 | 616 | (5,572)
Gain on disposal of subsidiaries (note 4) | 58,913 | 9,055 | 0 | 16,381
Other income, net | 2,890 | 444 | 18,191 | 17,236
Loss before income tax | (253,895) | (39,023) | (204,598) | (5,254)
Income tax expenses | (31,789) | (4,886) | (60,486) | (74,025)
Net loss | (285,684) | (43,909) | (265,084) | (79,279)
Net loss attributable to noncontrolling interests | (1,364) | (210) | (3,217) | (975)
Net loss attributable to Concord Medical Services Holdings Limited | ¥ (284,320) | $ (43,699) | ¥ (261,867) | ¥ (78,304)
Loss per share |  |  |  |
Basic and diluted | (per share) | ¥ (2.19) | $ (0.34) | ¥ (2.00) | ¥ (0.58)
Weighted average number of shares outstanding: |  |  |  |
Basic and diluted | 130,091,977 | 130,091,977 | 130,631,867 | 134,546,772
Other comprehensive (loss) income, net of tax |  |  |  |
Foreign currency translation | ¥ 40,550 | $ 6,232 | ¥ (41,394) | ¥ (27,923)
Total other comprehensive (loss) income, net of tax | 40,550 | 6,232 | (41,394) | (27,923)
Comprehensive loss | (245,134) | (37,677) | (306,478) | (107,202)
Comprehensive (loss) income attributable to noncontrolling interests | 2,485 | 382 | (6,740) | (975)
Comprehensive loss attributable to Concord Medical Services Holdings Limited | ¥ (247,619) | $ (38,059) | ¥ (299,738) | ¥ (106,227)

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- Definition Amount of income (expense) related to nonoperating activities, classified as other. + 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 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + 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=63488584&loc=d3e20235-122688 + Details
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- Definition Expenses recognized in the period that are directly related to the selling and distribution of products or services. + 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 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). + References No definition available. + Details
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