Fair Value Measurements - Non-financial Assets and Liabilities (Details) - USD ($)	3 Months Ended						12 Months Ended
	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Mar. 31, 2018	Apr. 01, 2017	Apr. 02, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intangible asset impairment charges							$ 5,200,000	$ 30,200,000	$ 0
Fixed assets impairment charge							27,500,000	169,000,000	10,900,000
Impairment Charge	$ 13,800,000	$ 2,600,000	$ 16,300,000	$ 193,800,000	$ 500,000	$ 4,900,000	32,700,000	199,200,000	10,900,000
Carrying Value Prior to Impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed Assets	30,500,000			186,900,000			30,500,000	186,900,000	10,900,000
Total	36,200,000			220,400,000			36,200,000	220,400,000
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed Assets	3,000,000			17,900,000			3,000,000	17,900,000	$ 0
Total	3,500,000			21,200,000			3,500,000	21,200,000
Lease rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intangible asset impairment charges							4,200,000	30,200,000
Lease rights | Carrying Value Prior to Impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intangible Assets	4,700,000			33,500,000			4,700,000	33,500,000
Lease rights | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intangible Assets	500,000			$ 3,300,000			500,000	$ 3,300,000
Customer relationships
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intangible asset impairment charges							1,000,000
Customer relationships | Carrying Value Prior to Impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intangible Assets	1,000,000						1,000,000
Customer relationships | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Intangible Assets	$ 0						$ 0