Goodwill and Intangible Assets (Changes in Carrying Amount of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended	3 Months Ended
	Dec. 31, 2014	Mar. 31, 2015	Dec. 31, 2013
Goodwill [Line Items]
Beginning Balance	$ 32,724
Goodwill Acquisitions	48,124
Ending Balance	80,848	80,310
Business [Member]
Goodwill [Line Items]
Beginning Balance	24,700
Goodwill Acquisitions	48,124
Ending Balance	72,824	72,286
Consumer [Member]
Goodwill [Line Items]
Beginning Balance			8,024
Ending Balance	8,024	8,024	8,024
Synchronite, LLC [Member]
Goodwill [Line Items]
Goodwill, Translation Adjustments		(538)
Ending Balance		2,700
Synchronite, LLC [Member] | Business [Member]
Goodwill [Line Items]
Goodwill, Translation Adjustments		$ (538)