Description of Business (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) segment	Sep. 30, 2018 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments \| segment			3
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales	$ 39,744	$ 49,093	$ 123,093	$ 132,071
Selling and marketing	30,218	28,482	87,438	87,877
General and administrative	15,662	13,102	44,471	36,789
Depreciation and amortization		0		0
Research and development	10,783	11,740	33,048	34,138
Total operating expenses	56,663	53,324	164,957	158,804
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		47,388		126,989
Selling and marketing		27,811		86,166
General and administrative		12,496		34,889
Depreciation and amortization		4,747		13,467
Research and development		9,975		29,364
Total operating expenses		55,029		163,886
Restatement Adjustment \| Depreciation Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		1,705		5,082
Selling and marketing		671		1,711
General and administrative		606		1,900
Depreciation and amortization		(4,747)		(13,467)
Research and development		1,765		4,774
Total operating expenses		(1,705)		(5,082)
Product
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales	26,495	34,864	83,632	91,321
Product \| Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		34,004		88,766
Product \| Restatement Adjustment \| Depreciation Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		860		2,555
Service
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales	$ 13,249	14,229	$ 39,461	40,750
Service \| Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		13,384		38,223
Service \| Restatement Adjustment \| Depreciation Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		$ 845		$ 2,527

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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