Share Repurchase Programs - Summary of Shares of Common Stock Repurchased Under Repurchase Programs (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended	36 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 30, 2020
Equity [Abstract]
Repurchase program, total number of shares purchased	445,000	541,000	641,000	1,627,000
Repurchase program, average price paid per share	$ 56.20	$ 51.56	$ 34.42
Repurchase program, approximate dollar value of shares purchased	$ 25,000	$ 27,899	$ 22,069	$ 74,968

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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Balance Type:	debit
Period Type:	duration