Goodwill and Intangible Assets Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2015	Jun. 30, 2014	Sep. 30, 2013	Oct. 01, 2014	Sep. 30, 2014	Apr. 30, 2014
Goodwill [Line Items]
Goodwill, Period Increase (Decrease)				$ 8,800
Goodwill	$ 118,257			118,257				$ 109,501
Impairment of intangible assets				$ 0	$ 398
FluidX [Member]
Goodwill [Line Items]
Goodwill							$ 8,247
Dynamic Micro Systems
Goodwill [Line Items]
Goodwill, Period Increase (Decrease)	$ 300	$ 300
Goodwill									$ 11,939
Celigo Cell Cytometer Product Line
Goodwill [Line Items]
Impairment of intangible assets			$ 400			$ 2,000