Balance Sheet Account Detail (Property and Equipment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 38,413		$ 38,413		$ 34,838
Accumulated depreciation	(13,578)		(13,578)		(11,483)
Property and equipment, net	24,835		24,835		23,355
Depreciation expense	1,300	$ 1,100	2,600	$ 2,200
Production equipment, molds, and office furniture
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	14,430		14,430		13,603
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	7,359		7,359		6,380
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	15,495		15,495		14,345
Construction in progress (software and related implementation, production equipment, and leasehold improvements)
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 1,129		$ 1,129		$ 510