Restructuring - Summary of Restructuring Charges by Segment (Details) - USD ($) $ in Thousands	3 Months Ended						12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2014	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 3,400	$ 800	$ 13,500	$ 300	$ 15,500	$ 4,700	$ 17,994	$ 20,218	$ 0
Operating Segments | Sales and Lease Ownership | Contractual Lease Obligations
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							13,432	11,589
Operating Segments | Sales and Lease Ownership | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							2,705	3,883
Operating Segments | Sales and Lease Ownership | Fixed Assets
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							1,386	4,746
Operating Segments | Sales and Lease Ownership | Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							17,523	20,218
Operating Segments | Franchised Stores
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							471
Operating Segments | Franchised Stores | Contractual Lease Obligations
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							0
Operating Segments | Franchised Stores | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							471
Operating Segments | Franchised Stores | Fixed Assets
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							0
Operating Segments | Corporate Segment
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							17,994
Operating Segments | Corporate Segment | Contractual Lease Obligations
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							13,432	11,589
Operating Segments | Corporate Segment | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							3,176	3,883
Operating Segments | Corporate Segment | Fixed Assets
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							$ 1,386	$ 4,746