Basis of Presentation and Summary of Significant Accounting Policies - Adoption of ASC 606 on impacted Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Assets
Receivables, net	$ 137,504	$ 140,188
Prepaid income taxes	17,402	43,654
Long-term receivables, net	103,102	126,570
Liabilities:
Deferred franchise revenue, short-term	10,138	11,001
Other accrued expenses	24,243	16,001
Deferred franchise revenue, long-term	64,557	70,432
Other non-current liabilities	27,319	18,071
Deferred income taxes, net	105,816	117,669
Equity:
Retained earnings (accumulated deficit)	$ 10,414	(69,940)
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
Assets
Receivables, net		150,174
Long-term receivables, net		131,212
Liabilities:
Deferred franchise revenue, short-term		0
Other accrued expenses		17,780
Deferred franchise revenue, long-term		0
Other non-current liabilities		23,003
Deferred income taxes, net		138,177
Equity:
Retained earnings (accumulated deficit)		(1,098)
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Accounting Standards Update 2014-09
Assets
Receivables, net		(9,986)
Long-term receivables, net		(4,642)
Liabilities:
Deferred franchise revenue, short-term		11,001
Other accrued expenses		(1,779)
Deferred franchise revenue, long-term		70,432
Other non-current liabilities		(4,932)
Deferred income taxes, net		(20,508)
Equity:
Retained earnings (accumulated deficit)		$ (68,842)