Operating Segments - Segment Data from Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Operating loss	$ (5,228)	$ (4,880)
Other income (loss), net	0	(388)
Equity income (loss)	(9,495)	(8,662)
Net income (loss)	(15,452)	(14,603)
Segment assets	236,110		$ 256,843
Healthcare
Segment Reporting Information [Line Items]
Operating loss	0	0
Other income (loss), net		(239)
Equity income (loss)	(4,996)	(4,042)
Net income (loss)	(4,996)	(4,281)
Segment assets	57,351		53,332
Technology
Segment Reporting Information [Line Items]
Operating loss	0	0
Other income (loss), net		0
Equity income (loss)	(4,500)	(4,772)
Net income (loss)	(4,500)	(4,772)
Segment assets	126,043		119,442
Reportable Subsegments
Segment Reporting Information [Line Items]
Operating loss	0	0
Other income (loss), net		(239)
Equity income (loss)	(9,496)	(8,814)
Net income (loss)	(9,496)	(9,053)
Segment assets	183,394		172,774
Other Items
Segment Reporting Information [Line Items]
Operating loss	(5,228)	(4,880)
Other income (loss), net		(149)
Equity income (loss)	1	152
Net income (loss)	(5,956)	$ (5,550)
Segment assets	$ 52,716		$ 84,069