Restructuring (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring expense		$ 33,697
Severance
Restructuring Cost and Reserve [Line Items]
Restructuring expense		6,765
Restructuring expenses	$ 1,500
Equity Based Compensation and Professional Fees
Restructuring Cost and Reserve [Line Items]
Restructuring expense		7,773
Restructuring expenses	702
Product Related and Other
Restructuring Cost and Reserve [Line Items]
Restructuring expense		$ 19,159
Restructuring expenses	11,600
Minimum
Restructuring Cost and Reserve [Line Items]
Number of customer's migrated		85.00%
Restructuring expenses incurred	3,000	$ 3,000
Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring expenses incurred	6,000	6,000
Accounts Payable and Accrued Liabilities | Severance
Restructuring Cost and Reserve [Line Items]
Outstanding liability	100	100
Accounts Payable and Accrued Liabilities | Equity Based Compensation and Professional Fees
Restructuring Cost and Reserve [Line Items]
Outstanding liability	131	131
Accounts Payable and Accrued Liabilities | Product Related and Other
Restructuring Cost and Reserve [Line Items]
Outstanding liability	$ 9	$ 9