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Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 24, 2019	Mar. 25, 2018
Earnings Per Share [Abstract]
Net income available to common stockholders - basic and diluted	$ 92,650	$ 88,827
Basic weighted average number of shares	40,865,532	42,822,112
Earnings per share – basic	$ 2.27	$ 2.07
Diluted weighted average number of shares	42,202,429	44,377,509
Earnings per share – diluted	$ 2.20	$ 2.00

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