Earnings Per Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 04, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Jul. 31, 2019
Stock options, outstanding		603,939	658,600	603,939	658,600	625,107
Stock options, weighted average exercise price		$ 63.19	$ 54.93	$ 63.19	$ 54.93	$ 54.15
Restricted stock units, outstanding		532,256		532,256		606,685
Common stock excluded from calculation of diluted earnings per share		112,179	44,912	149,187	63,770
Dilutive effect on shares of conversion premium		1,130,530	1,373,341	1,500,717	1,180,425
Denominator for diluted earnings per share - adjusted weighted average shares used in computing net income per share - diluted		57,304	57,368	57,598	57,072
Charges associated with convertible debt instruments, net of tax		$ 0	$ 0	$ 387	$ 0
AccountingStandardsUpdate202006Member
Denominator for diluted earnings per share - adjusted weighted average shares used in computing net income per share - diluted	3,474,429
Charges associated with convertible debt instruments, net of tax				400
0.375% Convertible Senior Notes due 2024
Principal amount		$ 287,500		$ 287,500			$ 287,500
Restricted Stock Units and Performance Stock Units
Restricted stock units, outstanding		532,256	619,761	532,256	619,761