Basis and Summary of Significant Accounting Policies - Narrative (Details)	3 Months Ended		9 Months Ended	12 Months Ended
	Sep. 30, 2019 USD ($) state	Sep. 30, 2018 USD ($)	Sep. 30, 2018 franchise	Dec. 31, 2018
Significant Accounting Policies [Line Items]
Additional number of businesses acquired | franchise			8
Threshold period past due for write-off of trade accounts receivable				60 days
Progressive Finance Holdings, LLC
Significant Accounting Policies [Line Items]
Threshold period past due for write-off of trade accounts receivable				120 days
Progressive Leasing
Significant Accounting Policies [Line Items]
Number of states in which entity operates | state	46
Progressive leasing invoice volume | $	$ 420,902	$ 355,005