Description of Business (Details) $ in Thousands	3 Months Ended		48 Months Ended
	Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($)	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	$ 79,515	$ 93,617
Cost of Sales	35,642	40,598
Selling, general and administrative	36,324	41,020
Selling and marketing		0
General and administrative		0
Depreciation and amortization		0
Research and development	10,415	11,641
Total operating expenses	60,427	52,661
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		93,617
Cost of Sales		38,598
Selling, general and administrative		0
Selling and marketing		26,753
General and administrative		13,224
Depreciation and amortization		4,749
Research and development		9,935
Total operating expenses		54,661
Restatement Adjustment | Depreciation and Amortization Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		2,000
Selling, general and administrative		1,043
Selling and marketing		0
General and administrative		0
Depreciation and amortization		(4,749)
Research and development		1,706
Total operating expenses		(2,000)
Restatement Adjustment | Selling, General and Administrative Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Selling, general and administrative		39,977
Selling and marketing		(26,753)
General and administrative		(13,224)
Depreciation and amortization		0
Research and development		0
Total operating expenses		0
Restatement Adjustment | Software Maintenance and Other Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		0
Cost of Sales		0
Product
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales	56,525	71,577
Cost of Sales	23,066	27,951
Product | Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		68,800
Cost of Sales		26,128
Product | Restatement Adjustment | Depreciation and Amortization Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		1,176
Product | Restatement Adjustment | Software Maintenance and Other Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		2,777
Cost of Sales		647
Service
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales	22,990	22,040
Cost of Sales	$ 12,576	12,647
Service | Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		24,817
Cost of Sales		12,470
Service | Restatement Adjustment | Depreciation and Amortization Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of Sales		824
Service | Restatement Adjustment | Software Maintenance and Other Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Sales		(2,777)
Cost of Sales		$ (647)