Litigation, Commitments and Contingencies - Future Lease Cost (Details) $ in Thousands	12 Months Ended
	Dec. 27, 2015 USD ($)
Contingencies
Gross Lease Costs, 2016	$ 41,710
Gross Lease Costs, 2017	37,672
Gross Lease Costs, 2018	32,153
Gross Lease Costs, 2019	25,079
Gross Lease Costs, 2020	17,134
Gross Lease Costs, Thereafter	54,532
Gross Lease Costs, Total	208,280
Future Expected Sublease Payments, 2016	6,457
Future Expected Sublease Payments, 2017	6,169
Future Expected Sublease Payments, 2018	6,044
Future Expected Sublease Payments, 2019	5,852
Future Expected Sublease Payments, 2020	5,524
Future Expected Sublease Payments, Thereafter	33,450
Future Expected Sublease Payments, Total	63,496
Net Lease Costs, 2016	35,253
Net Lease Costs, 2017	31,503
Net Lease Costs, 2018	26,109
Net Lease Costs, 2019	19,227
Net Lease Costs, 2020	11,610
Net Lease Costs, Thereafter	21,082
Net Lease Costs, Total	$ 144,784