Stock Based Compensation - Schedule of Stock Options Exercise Price (Detail) shares in Thousands	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Class of Stock [Line Items]
Exercise price, options outstanding (in shares)	5,447
Exercise price, options exercisable (in shares)	3,798
$35.04 – $196.18
Class of Stock [Line Items]
Exercise price, minimum (in usd per share) | $ / shares	$ 35.04
Exercise price, maximum (in usd per share) | $ / shares	$ 196.18
Exercise price, options outstanding (in shares)	3,618
Exercise price, weighted average remaining vesting life in years	1 month 17 days
Exercise price, options exercisable (in shares)	3,444
$199.75 – $202.83
Class of Stock [Line Items]
Exercise price, minimum (in usd per share) | $ / shares	$ 199.75
Exercise price, maximum (in usd per share) | $ / shares	$ 202.83
Exercise price, options outstanding (in shares)	123
Exercise price, weighted average remaining vesting life in years	2 months 8 days
Exercise price, options exercisable (in shares)	102
$205.28 – $216.18
Class of Stock [Line Items]
Exercise price, minimum (in usd per share) | $ / shares	$ 205.28
Exercise price, maximum (in usd per share) | $ / shares	$ 216.18
Exercise price, options outstanding (in shares)	90
Exercise price, weighted average remaining vesting life in years	1 year 6 months 7 days
Exercise price, options exercisable (in shares)	42
$224.99 – $231.70
Class of Stock [Line Items]
Exercise price, minimum (in usd per share) | $ / shares	$ 224.99
Exercise price, maximum (in usd per share) | $ / shares	$ 231.70
Exercise price, options outstanding (in shares)	261
Exercise price, weighted average remaining vesting life in years	1 year 10 months 6 days
Exercise price, options exercisable (in shares)	91
$248.28 – $252.50
Class of Stock [Line Items]
Exercise price, minimum (in usd per share) | $ / shares	$ 248.28
Exercise price, maximum (in usd per share) | $ / shares	$ 252.50
Exercise price, options outstanding (in shares)	233
Exercise price, weighted average remaining vesting life in years	1 year 2 months 26 days
Exercise price, options exercisable (in shares)	109
$256.55 – $261.27
Class of Stock [Line Items]
Exercise price, minimum (in usd per share) | $ / shares	$ 256.55
Exercise price, maximum (in usd per share) | $ / shares	$ 261.27
Exercise price, options outstanding (in shares)	1,039
Exercise price, weighted average remaining vesting life in years	2 years 2 months 12 days
Exercise price, options exercisable (in shares)	1
$263.21 – $319.55
Class of Stock [Line Items]
Exercise price, minimum (in usd per share) | $ / shares	$ 263.21
Exercise price, maximum (in usd per share) | $ / shares	$ 319.55
Exercise price, options outstanding (in shares)	83
Exercise price, weighted average remaining vesting life in years	3 years
Exercise price, options exercisable (in shares)	9