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Restructuring (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016 USD ($) position	Dec. 31, 2016 USD ($)
Total termination charges		$ 700
Severance benefits and other one-time termination costs		600
Cash expenditures	$ 600
Restructuring charges
Restructuring charge		676
Non-cash settlements		(46)
Cash payments		(625)
Balance at the end of the period		5
Workforce reduction
Restructuring charges
Restructuring charge		561
Cash payments		(561)
Facility related and other termination costs
Restructuring charges
Restructuring charge		115
Non-cash settlements		(46)
Cash payments		(64)
Balance at the end of the period		$ 5
United States
Number of positions/employees terminated | position	12
Hyderabad, India
Number of positions/employees terminated | position	18

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Amount of capital expenditure attributable to discontinued operations.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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