Equity - Summary of Option Activity (Detail) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Number of shares
Number of shares, Options outstanding, beginning of year	1,082	1,575	1,410
Number of shares, Granted	167	216	293
Number of shares, Exercised	(592)	(709)	(128)
Number of shares, Expired or Forfeited	0	0	0
Number of shares, Options outstanding, end of year	657	1,082	1,575
Number of shares, Options exercisable, end of year	111	426	788
Weighted average exercise price
Weighted average exercise price, Options outstanding, beginning of year	$ 33.38	$ 21.39	$ 18.22
Weighted average exercise price, Granted	98.11	55.72	33.33
Weighted average exercise price, Exercised	27.32	13.60	13.89
Weighted average exercise price, Expired or Forfeited	0	0	0
Weighted average exercise price, Options outstanding, end of year	55.32	33.38	21.39
Weighted average exercise price, Options exercisable, end of year	$ 34.54	$ 24.99	$ 15.75