Consolidated Statements of Income (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 25, 2015	Sep. 30, 2016	Sep. 25, 2015
Income Statement [Abstract]
Limited partnership interest value	$ 1,000	$ 1,000	$ 1,000	$ 1,000