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Fair value measurements (Tables)
3 Months Ended
Mar. 31, 2021
Fair Value Disclosures [Abstract]  
Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis

The fair value of level 3 liabilities measured at fair value on a recurring basis for the three months ended March 31, 2021 was as follows:

Description 

Balance at

December 31,

2020

  Change in Fair Value  Effect of Foreign Exchange Rates  Balance at March 31, 2021
Participation percentage interest liability  $112,852   $101,390   $(7,269)  $206,973 
Total   $112,852   $101,390   $(7,269)  $206,973