Goodwill and Other Intangible Assets Narrative (Details) (USD $)	12 Months Ended						12 Months Ended			12 Months Ended			3 Months Ended	12 Months Ended			12 Months Ended			12 Months Ended			1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2013 Developed Technology [Member]	Dec. 31, 2012 Developed Technology [Member]	Dec. 31, 2011 Developed Technology [Member]	Dec. 31, 2013 Noncompete Agreements [Member]	Dec. 31, 2012 Noncompete Agreements [Member]	Dec. 31, 2011 Noncompete Agreements [Member]	Dec. 31, 2012 Trademarks [Member]	Dec. 31, 2013 Trademarks [Member]	Dec. 31, 2012 Trademarks [Member]	Dec. 31, 2011 Trademarks [Member]	Dec. 31, 2013 Client Relationships [Member]	Dec. 31, 2012 Client Relationships [Member]	Dec. 31, 2011 Client Relationships [Member]	Dec. 31, 2013 Franchise Rights [Member]	Dec. 31, 2012 Franchise Rights [Member]	Dec. 31, 2011 Franchise Rights [Member]	Dec. 31, 2010 DSPCon, Inc [Member]	Dec. 31, 2013 DSPCon, Inc [Member]	Dec. 31, 2011 DSPCon, Inc [Member]	Dec. 20, 2010 DSPCon, Inc [Member]	Dec. 20, 2010 DSPCon, Inc [Member] Developed Technology [Member]	Dec. 20, 2010 DSPCon, Inc [Member] Trademarks [Member]	Dec. 20, 2010 DSPCon, Inc [Member] Client Relationships [Member]	Jul. 02, 2013 PSS [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 18,742,000	$ 18,742,000	$ 13,577,000				$ 460,000	$ 460,000	$ 460,000	$ 150,000	$ 150,000	$ 150,000	$ 5,200,000	$ 5,200,000	$ 5,200,000	$ 100,000	$ 11,960,000	$ 11,960,000	$ 11,960,000	$ 972,000	$ 972,000	$ 907,000
Business Combination, Consideration Transferred																							6,900,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net																										5,600,000	500,000	100,000	1,700,000
Goodwill	62,280,000	62,009,000																							3,400,000					10,500,000
Contingent payment amount																								400,000
Fair value of contingent consideration	600,000			500,000	400,000	300,000																		200,000
Fair value in excess of carrying value, as a percentage																														15.00%
Indefinite-lived trademarks													2,165,000	2,165,000	2,165,000	7,265,000
Adjustments, transfers out of infinite lived														0	(5,100,000)
Amortization of Intangible Assets	(1,625,000)	(1,306,000)	(1,400,000)				(92,000)	(92,000)		(30,000)	(29,000)			(373,000)	(34,000)		(1,032,000)	(1,056,000)		(98,000)	(95,000)
Intangible Assets, Gross (Excluding Goodwill)	20,907,000	20,907,000	20,842,000
Finite-Lived Intangible Assets, Accumulated Amortization	(5,750,000)	(4,125,000)	(2,819,000)				(276,000)	(184,000)	(92,000)	(105,000)	(75,000)	(46,000)	(67,000)	(440,000)	(67,000)	(33,000)	(4,625,000)	(3,593,000)	(2,537,000)	(304,000)	(206,000)	(111,000)
Net adjustments to intangible assets	0	65,000
Finite-Live Intangible Assets, Net Adjustments During Period	0	5,165,000
Additions																				0	(65,000)
Finite-Lived Intangible Assets, Transferred From Indefinite Lived													$ 5,100,000	$ 0	$ 5,100,000