Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
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Segments - Additional Information (Detail)	3 Months Ended		6 Months Ended
Segments - Additional Information (Detail)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) Segment	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| Segment			3
Number of operating segments \| Segment			0
Revenue	$ 140,550,000	$ 107,316,000	$ 261,882,000	$ 198,418,000
Franchise revenue
Segment Reporting Information [Line Items]
Revenue	58,150,000	37,794,000	112,762,000	74,591,000
Franchise revenue \| Placement Services
Segment Reporting Information [Line Items]
Revenue	3,079,000	2,871,000	5,177,000	4,977,000
Corporate-owned Stores
Segment Reporting Information [Line Items]
Revenue	34,252,000	$ 28,285,000	66,959,000	$ 55,326,000
Corporate-owned Stores \| Canada
Segment Reporting Information [Line Items]
Long-lived assets	$ 2,191,000		2,191,000		$ 2,558,000
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue			$ 0