XML 63 R57.htm IDEA: XBRL DOCUMENT v3.20.1
SUMMARY OF PRINCIPAL ACCOUNTING POLICIES - Reconciliation of reportable segment revenues (Details)
¥ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2019
CNY (¥)
Dec. 31, 2018
CNY (¥)
Dec. 31, 2017
CNY (¥)
Segment reporting        
Net revenues $ 567,677 ¥ 3,952,053 ¥ 1,785,970 ¥ 959,486
Total profit for reportable segments   142,828 88,527 80,498
Unallocated amounts:        
Net revenues 567,677 3,952,053 1,785,970 959,486
Cost of products sold   (128,996) (73,930) (55,880)
Selling and marketing expenses (48,919) (340,562) (260,040) (190,074)
General and administrative expenses (17,740) (123,501) (98,759) (53,434)
Technology expenses (8,892) (61,902) (71,248) (48,133)
Other operating income (expenses), net (536) (3,735) (668) 2,732
Interest income 690 4,802 4,352 4,013
Interest expense (520) (3,622)   (55)
Foreign exchange (loss) gain (1,484) (10,328) 2,459 (3,492)
Other income, net 120 834 11,531 4,229
Loss before income taxes (72,083) (501,827) (382,033) (249,327)
Product        
Segment reporting        
Net revenues   3,929,698 1,770,227 949,217
Unallocated amounts:        
Net revenues   3,929,698 1,770,227 949,217
Cost of products sold $ (543,950) (3,786,870) (1,681,700) (868,719)
Service        
Segment reporting        
Net revenues   22,355 15,743 10,269
Unallocated amounts:        
Net revenues   ¥ 22,355 ¥ 15,743 ¥ 10,269