Changes in the Company's carrying value of other intangible assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended			3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Trademarks [Member]	Dec. 31, 2013 Trademarks [Member]	Dec. 31, 2012 Trademarks [Member]	Dec. 31, 2013 Developed Technology [Member]	Dec. 31, 2012 Developed Technology [Member]	Dec. 31, 2013 Client Relationships [Member]	Dec. 31, 2012 Client Relationships [Member]	Dec. 31, 2013 Noncompete Agreements [Member]	Dec. 31, 2012 Noncompete Agreements [Member]	Dec. 31, 2013 Franchise Rights [Member]	Dec. 31, 2012 Franchise Rights [Member]
Finite-lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Gross, Beginning	$ 18,742	$ 13,577			$ 5,200	$ 100	$ 460	$ 460	$ 11,960	$ 11,960	$ 150	$ 150	$ 972	$ 907
Indefinite-Lived Trademarks, begining					2,165	7,265
Intangible Asssets, Gross, Excluding Goodwill, Beginning	20,907	20,842
Finite-Lived Intangible Assets, Accumulated Amortization, Beginning	(4,125)	(2,819)			(67)	(33)	(184)	(92)	(3,593)	(2,537)	(75)	(46)	(206)	(111)
Adjustments, transfers into finite lived				5,100	0	5,100
Additions													0	65
Net adjustments, finite lived	0	5,165
Adjustments, transfers out of infinite lived					0	(5,100)
Net adjustments to intangible assets	0	65
Amortization of Intangible Assets	(1,625)	(1,306)	(1,400)		(373)	(34)	(92)	(92)	(1,032)	(1,056)	(30)	(29)	(98)	(95)
Finite-Lived Intangible Assets, Gross, Ending	18,742	18,742	13,577	5,200	5,200	5,200	460	460	11,960	11,960	150	150	972	972
Indefinite-Lived Trademarks, ending				2,165	2,165	2,165
Intangible Asssets, Gross, Excluding Goodwill, Ending	20,907	20,907	20,842
Finite-Lived Intangible Assets, Accumulated Amortization, Ending	$ (5,750)	$ (4,125)	$ (2,819)	$ (67)	$ (440)	$ (67)	$ (276)	$ (184)	$ (4,625)	$ (3,593)	$ (105)	$ (75)	$ (304)	$ (206)