Restructuring - Narrative (Details) $ in Thousands	3 Months Ended		12 Months Ended	36 Months Ended	51 Months Ended
	Mar. 31, 2020 USD ($) store	Mar. 31, 2019 USD ($) store	Dec. 31, 2020 store	Dec. 31, 2018 store	Mar. 31, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Total Restructuring Expenses	$ 22,286	$ 13,281
Restructuring Program 2020
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, number of store closures | store	40
Total Restructuring Expenses	$ 16,400
Restructuring Program 2019
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost					$ 43,100
Restructuring and related cost, number of store closures | store		155
Total Restructuring Expenses	4,600
Restructuring Program 2016 and 2017
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost					$ 42,200
Total Restructuring Expenses	$ 1,300
Gain on Sale of Closed Store Properties
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, number of store closures | store				139
Forecast [Member] | Restructuring Program 2020
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, number of store closures | store			65