Employee Benefit Plans (Change in Benefit Obligation and Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2015	Dec. 31, 2014	Dec. 25, 2013
Pension Plan [Member]
Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	$ 74,208	$ 64,391
Service cost	380	380	$ 400
Interest cost	2,983	3,099	2,977
Actuarial (gains) losses	(5,780)	12,313
Benefits paid	(4,056)	(5,975)
Settlements	0	0
Benefit obligation at end of year	67,735	74,208	64,391
Accumulated benefit obligation	67,735	74,208
Change in Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	62,820	61,094
Actual return on plan assets	(386)	5,201
Employer contributions	0	2,500
Benefits paid	(4,056)	(5,975)
Settlements	0	0
Fair value of plan assets at end of year	58,378	62,820	61,094
Funded status	(9,357)	(11,388)
Other Defined Benefit Plans [Member]
Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	2,713	2,716
Service cost	0	0
Interest cost	107	123	111
Actuarial (gains) losses	43	298
Benefits paid	(194)	(195)
Settlements	0	(229)
Benefit obligation at end of year	2,669	2,713	2,716
Accumulated benefit obligation	2,669	2,713
Change in Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	194	424
Benefits paid	(194)	(195)
Settlements	0	(229)
Fair value of plan assets at end of year	0	0	$ 0
Funded status	$ (2,669)	$ (2,713)