Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Activity Related to the intangible assets
Beginning Balance				$ 33,016					$ 33,016
Amortization	(898)	(904)	(908)	(983)	(1,132)	(1,219)	(1,260)	(1,194)	(7,127)	(8,330)	(7,559)
Ending Balance	27,689								27,689	33,016
Customer Relationships [Member]
Activity Related to the intangible assets
Ending Balance	7,064								7,064	10,213
Trade Name [Member]
Activity Related to the intangible assets
Beginning Balance				1,769					1,769
Amortization									(3,709)	(4,671)	(4,633)
Ending Balance	1,209								1,209	1,769
Software Technology [Member]
Activity Related to the intangible assets
Beginning Balance				21,034					21,034
Amortization									(3,418)	(3,659)	(2,926)
Ending Balance	$ 19,416								$ 19,416	$ 21,034