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PRINCIPAL ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2019
PRINCIPAL ACCOUNTING POLICIES  
Summary of financial information of Group's VIEs

As of December 31, 

    

2018

    

2019

RMB

RMB

Total assets

521,044

478,635

Total liabilities

214,588

205,580

For the year ended December 31, 

    

2017

    

2018

    

2019

RMB

RMB

RMB

Total revenues

161,816

180,749

Net income (loss)

(4,088)

18,406

(33,419)

For the year ended December 31, 

    

2017

    

2018

    

2019

RMB

RMB

RMB

Net cash provided by (used in) operating activities

 

(7,131)

 

5,855

 

(24,841)

Net cash provided by (used in) investing activities

 

4,152

 

(83,936)

 

(22,232)

Net cash provided by financing activities

 

3,334

 

157,000

 

25,000

Net increase (decrease) in cash

 

355

 

78,919

 

(22,073)

Cash, beginning of year

 

7,527

 

7,882

 

86,801

Cash, end of year

 

7,882

 

86,801

 

64,728

Schedule of cash and restricted cash

 

2018

    

2019

 

RMB

RMB

Cash

1,968,351

 

2,294,904

Restricted cash

5,770

 

66,169

Total cash and restricted cash

1,974,121

 

2,361,073

Schedule of estimated useful lives of property and equipment

    

Estimated useful lives

Land use rights

32.42 to 50 years

Building

20 years

Leasehold improvements

Lesser of the lease period or the estimated useful life

Electronic equipment

3 to 5 years

Furniture and fixtures

5 years

Motor vehicles

5 years

Other assets

5 years

Schedule of estimated useful lives of intangible assets

    

Estimated useful lives

Computer software

 

2 to 10 years

Acquired technology

 

5 to 10 years

Trade names

 

10 to 20 years

Customer relationships

 

5 years

Acquired program transmission license

 

6 years

Acquired training and other licenses

 

5 to 10 years

Schedule of assumptions used to estimate the fair value of stock options

    

2017

  

2018

  

2019

Risk-free interest rate

1.61%

2.41%-2.75%

1.61%-2.47%

Expected life (years)

4

4

4

Expected dividend yield

0%

0%

0%

Volatility

32%

32%

35%-38%

Weighted average fair value per common share on date of option grant

US$56.68

US$73.46

US$69.46