Description of Business (Details) $ in Thousands	3 Months Ended		6 Months Ended		48 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) segment	Jun. 30, 2019 USD ($)	Dec. 31, 2019 segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments | segment			1		5
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales	$ 60,564	$ 93,491	$ 140,079	$ 187,108
Cost of Sales	31,668	42,751	67,310	83,349
Selling, general and administrative	30,036	45,007	66,360	86,027
Selling and marketing		0		0
General and administrative		0		0
Depreciation and amortization		0		0
Research and development	10,186	10,626	20,601	22,267
Total operating expenses	40,858	55,633	101,285	108,294
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		93,491		187,108
Cost of Sales		41,172		79,770
Selling, general and administrative		0		0
Selling and marketing		29,124		55,877
General and administrative		14,424		27,648
Depreciation and amortization		4,573		9,322
Research and development		9,091		19,026
Total operating expenses		57,212		111,873
Restatement Adjustment | Depreciation and Amortization Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		1,579		3,579
Selling, general and administrative		1,459		2,502
Selling and marketing		0		0
General and administrative		0		0
Depreciation and amortization		(4,573)		(9,322)
Research and development		1,535		3,241
Total operating expenses		(1,579)		(3,579)
Restatement Adjustment | Selling, general and administrative
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Selling, general and administrative		43,548		83,525
Selling and marketing		(29,124)		(55,877)
General and administrative		(14,424)		(27,648)
Depreciation and amortization		0		0
Research and development		0		0
Total operating expenses		0		0
Restatement Adjustment | Software Maintenance and Other Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		0		0
Cost of Sales		0		0
Product
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales	42,259	71,045	98,784	142,622
Cost of Sales	21,333	30,505	44,399	58,456
Product | Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		67,992		136,792
Cost of Sales		29,037		55,165
Product | Restatement Adjustment | Depreciation and Amortization Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		796		1,972
Product | Restatement Adjustment | Software Maintenance and Other Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		3,053		5,830
Cost of Sales		672		1,319
Service
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales	18,305	22,446	41,295	44,486
Cost of Sales	$ 10,335	12,246	$ 22,911	24,893
Service | Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		25,499		50,316
Cost of Sales		12,135		24,605
Service | Restatement Adjustment | Depreciation and Amortization Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		783		1,607
Service | Restatement Adjustment | Software Maintenance and Other Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		(3,053)		(5,830)
Cost of Sales		$ (672)		$ (1,319)