XML 34 R21.htm IDEA: XBRL DOCUMENT v3.23.1
Shareholders' equity
3 Months Ended
Mar. 31, 2023
Stockholders' Equity Note [Abstract]  
Shareholders' equity In October 2018, our board of directors authorized the repurchase of up to $500,000 of our common stock. This authorization has no expiration date. No shares were repurchased under this authorization during the quarters ended March 31, 2023 or March 31, 2022, and $287,452 remained available for repurchase as of March 31, 2023.