Aggregate dividends paid during the period for each share of common stock outstanding.

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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Equity - Summary of Options Outstanding (Detail) - $ / shares shares in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Number of Options outstanding	1,575								1,575
Options outstanding, Weighted average remaining life in years									4 years
Options outstanding, Weighted-average exercise price	$ 21.39								$ 21.39
Number of Options exercisable	788								788
Options exercisable, Weighted average exercise price	$ 15.75								$ 15.75
Dividends declared per share	$ 0.08	$ 0.08	$ 0.07	$ 0.07	$ 0.07	$ 0.07	$ 0.07	$ 0.07		$ 0.07
Range One
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Range of exercise prices, minimum										9.88
Range of exercise prices, maximum										11.71
Number of Options outstanding	71								71
Options outstanding, Weighted average remaining life in years									1 year 1 month 6 days
Options outstanding, Weighted-average exercise price	$ 11.71								$ 11.71
Number of Options exercisable	71								71
Options exercisable, Weighted average exercise price	$ 11.71								$ 11.71
Range Two
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Range of exercise prices, minimum										12.20
Range of exercise prices, maximum										12.20
Number of Options outstanding	416								416
Options outstanding, Weighted average remaining life in years									3 years 1 month 6 days
Options outstanding, Weighted-average exercise price	$ 12.20								$ 12.20
Number of Options exercisable	292								292
Options exercisable, Weighted average exercise price	$ 12.20								$ 12.20
Range Three
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Range of exercise prices, minimum										13.49
Range of exercise prices, maximum										13.49
Number of Options outstanding	226								226
Options outstanding, Weighted average remaining life in years									2 years 1 month 6 days
Options outstanding, Weighted-average exercise price	$ 13.49								$ 13.49
Number of Options exercisable	226								226
Options exercisable, Weighted average exercise price	$ 13.49								$ 13.49
Range Four
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Range of exercise prices, minimum										21.60
Range of exercise prices, maximum										21.60
Number of Options outstanding	287								287
Options outstanding, Weighted average remaining life in years									4 years 1 month 6 days
Options outstanding, Weighted-average exercise price	$ 21.60								$ 21.60
Number of Options exercisable	129								129
Options exercisable, Weighted average exercise price	$ 21.60								$ 21.60
Range Five
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Range of exercise prices, minimum										31.10
Range of exercise prices, maximum										$ 31.10
Number of Options outstanding	282								282
Options outstanding, Weighted average remaining life in years									5 years 1 month 6 days
Options outstanding, Weighted-average exercise price	$ 31.10								$ 31.10
Number of Options exercisable	70								70
Options exercisable, Weighted average exercise price	$ 31.10								$ 31.10
Range Six
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Range of exercise prices, minimum									33.33
Range of exercise prices, maximum									$ 33.33
Number of Options outstanding	293								293
Options outstanding, Weighted average remaining life in years									6 years 1 month 6 days
Options outstanding, Weighted-average exercise price	$ 33.33								$ 33.33
Number of Options exercisable	0								0
Options exercisable, Weighted average exercise price	$ 0								$ 0