Note 8 Goodwill and Intangible Assets (Acquired Finite-Lived Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Asset, Fair Value	$ 48,649
Developed Intellectual Property [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Asset, Fair Value	14,256
Finite-Lived Intangible Assets, Amortization Method	Straight-line
Acquired Finite-Lived Intangible Assets, Estimated Useful Life	60 months
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Asset, Fair Value	14,703
Finite-Lived Intangible Assets, Amortization Method	Accelerated
Acquired Finite-Lived Intangible Assets, Estimated Useful Life	36 months
In Progress Intellectual Property [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Asset, Fair Value	13,090
Finite-Lived Intangible Assets, Amortization Method	Straight-line
Acquired Finite-Lived Intangible Assets, Estimated Useful Life	60 months
Contract Backlog [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Asset, Fair Value	5,250
Finite-Lived Intangible Assets, Amortization Method	Straight-line
Acquired Finite-Lived Intangible Assets, Estimated Useful Life	12 months
Noncompetition Agreement
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-Lived Intangible Asset, Fair Value	$ 1,350
Finite-Lived Intangible Assets, Amortization Method	Straight-line
Acquired Finite-Lived Intangible Assets, Estimated Useful Life	120 months