Share-Based Compensation - Summary of SARs Outstanding (Detail) - SARs	6 Months Ended
	Jun. 29, 2019 $ / shares shares
Stock Awards
Outstanding at beginning of period (in shares) | shares	1,261,185
Granted (in shares) | shares	70,141
Exercised (in shares) | shares	(220,839)
Forfeited (in shares) | shares	(19,288)
Outstanding at end of period (in shares) | shares	1,091,199
Exercisable at end of period (in shares) | shares	655,542
Weighted- Average Exercise Price
Outstanding at beginning of period (usd per share) | $ / shares	$ 75.71
Granted (usd per share) | $ / shares	205.12
Exercised (usd per share) | $ / shares	66.39
Forfeited (usd per share) | $ / shares	86.33
Outstanding at end of period (usd per share) | $ / shares	85.74
Exercisable at end of period (usd per share) | $ / shares	$ 69.40