Contingencies - Litigation (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Oct. 31, 2019	Apr. 30, 2019	Sep. 30, 2019	Mar. 31, 2019
Loss Contingencies [Line Items]
Litigation settlement expense				$ 88,150
Wave Lengths Hair Salons Of Florida Inc.
Loss Contingencies [Line Items]
Required amount reserved		$ 90,000
Amount awarded to other party		$ 60,000
Period of settlement payments of monthly rent credits		5 years
Loss contingency accrual				$ 88,150
Reduction in accrued liability			$ 22,688
Wave Lengths Hair Salons Of Florida Inc. | Maximum
Loss Contingencies [Line Items]
Attorney fees and associated costs		$ 28,000
Incentive award costs		50
Class administration costs		$ 100
Subsequent Event | Wave Lengths Hair Salons Of Florida Inc.
Loss Contingencies [Line Items]
Litigation settlement expense	$ 23,050