v3.19.1

Acquisitions - Narrative (Details) $ in Thousands		3 Months Ended		12 Months Ended
	Jan. 01, 2018 USD ($)	Mar. 31, 2019 USD ($) franchise	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($) store
Business Acquisition [Line Items]
Additional number of businesses acquired | franchise		2
Payments to acquire businesses and asset acquisitions		$ (3,470)	$ (4,774)
Franchisee Acquisitions
Business Acquisition [Line Items]
Number of branded stores | store				152
Purchase price	$ 189,826	189,826		$ 189,826
Revenue of acquiree since acquisition date		48,900	1,300
Earnings or loss of acquiree since acquisition date		3,000	100
Acquisition-related costs		1,400
All Acquisitions Excluding SEI Acquisition
Business Acquisition [Line Items]
Payments to acquire businesses and asset acquisitions		$ (3,500)	$ (4,800)

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- Definition

Additional Number of Businesses Acquired

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Payments to Acquire Businesses And Asset Acquisitions, Net of Cash Acquired

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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