Income Taxes (Details Numeric 2) - USD ($) $ in Thousands	12 Months Ended
	Nov. 29, 2019	Nov. 30, 2018
Valuation Allowance [Abstract]
Deferred tax assets valuation allowance	$ 244,432	$ 174,496
Change in deferred tax asset valuation allowance	69,900
Federal [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	421,600
Tax credit carry forward	44,400
State [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	374,500
Tax credit carry forward	243,800
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	82,600
Tax credit carry forward	$ 15,100
Minimum
Operating Loss Carryforwards [Line Items]
Tax credit carryforward, Expiration date	Jan. 01, 2020
Maximum
Operating Loss Carryforwards [Line Items]
Tax credit carryforward, Expiration date	Jan. 01, 2038