Acquisitions Infinity Franchise Holdings Acquisition - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Jan. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Goodwill		$ 50,832	$ 22,950	$ 17,428
Infinity Franchise Holdings Acquisition
Business Acquisition [Line Items]
Assets acquired	$ 80,164
Total liabilities assumed	709,000
Credit facility paid off	67,600
Consideration paid	17,360
Cash consideration	$ 9,000
Number of shares of common stock issued as consideration	562,469
Stock price of the acquired entity (in dollars per share)	$ 16.02
Period prior to announcement of the transaction for which average closing price is considered to calculate value of shares to be issued	10 days
Goodwill	$ 5,522
As initially reported | Infinity Franchise Holdings Acquisition
Business Acquisition [Line Items]
Assets acquired	$ 80,978