XML 54 R81.htm IDEA: XBRL DOCUMENT v3.20.1
Summary of significant accounting policies (Details)
 12 Months Ended
Dec. 31, 2019
Amendments to IAS 1 and IAS 8 [Member]  
Statement [Line Items]  
Title of new IFRS Amendments to IAS 1 and IAS 8
Description of nature of impending change in accounting policy Presentation of Financial Statements and Accounting Policies, Changes in Accounting Estimates and Errors.
Date by which application of new IFRS is required Jan. 01, 2020
Amendments to IFRS 3 [Member]  
Statement [Line Items]  
Title of new IFRS Amendments to IFRS 3
Description of nature of impending change in accounting policy Definition of a Business.
Date by which application of new IFRS is required Jan. 01, 2020
IFRS 17 [Member]  
Statement [Line Items]  
Title of new IFRS IFRS 17
Description of nature of impending change in accounting policy Insurance Contracts.
Date by which application of new IFRS is required Jan. 01, 2021
Amendments To IAS 39 IFRS 7 And IFRS 9 [Member]  
Statement [Line Items]  
Title of new IFRS Amendments to IAS 39, IFRS 7 and IFRS 9
Description of nature of impending change in accounting policy Interest Rate Benchmark Reform
Date by which application of new IFRS is required Jan. 01, 2021