Note 12 - Financial Instruments (Details Textual) - USD ($)	Oct. 20, 2017	Dec. 02, 2017	Feb. 24, 2017	Feb. 14, 2017	Dec. 03, 2016	Oct. 07, 2015
Foreign Currency Cash Flow Hedge Asset at Fair Value					$ 4,654,000
Interest Rate Fair Value Hedge Asset at Fair Value		$ 3,104,000			$ 1,579,000
Interest Rate Fair Value Hedge Liability at Fair Value		2,121,000
Public Notes [Member]
Debt Instrument, Face Amount				$ 300,000,000
Term Loan B [Member]
Debt Instrument, Face Amount	$ 2,150,000,000
Term Loan B [Member] | London Interbank Offered Rate (LIBOR) [Member]
Derivative, Fixed Interest Rate	4.2775%
Cross Currency Interest Rate Contract [Member]
Derivative, Notional Amount	$ 401,200,000	533,624,000	$ 42,600,000			$ 134,736,000
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax		5,373,000
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months		1,523,000
Cross Currency Interest Rate Contract [Member] | Other Liabilities [Member]
Foreign Currency Cash Flow Hedge Asset at Fair Value		20,136,000
Interest Rate Swap [Member]
Derivative, Amount of Hedged Item	$ 1,050,000,000	150,000,000
Derivative, Fixed Interest Rate	4.28%
Interest Rate Swap [Member] | Other Operating Income (Expense) [Member]
Gain (Loss) on Sale of Derivatives	$ 168,000
Interest Rate Swap [Member] | Other Assets [Member]
Interest Rate Fair Value Hedge Asset at Fair Value		$ 3,104
Interest Rate Swap Related to Public Notes [Member]
Derivative, Amount of Hedged Item				$ 150,000,000
Interest Rate Swap Related to Public Notes [Member] | London Interbank Offered Rate (LIBOR) [Member]
Derivative, Variable Interest Rate				1.86%