|
Accrued Expenses (Details 2) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Activity in accrued restructuring charges | |||
| Balance at the beginning of the period | $ 551us-gaap_RestructuringReserve | ||
| Restructuring provision incurred | 474env_SeveranceAndLeaseTerminationCharges | 115env_SeveranceAndLeaseTerminationCharges | |
| Lease termination payment accrued | 551us-gaap_RestructuringReserveAccrualAdjustment | ||
| Payments | (551)us-gaap_PaymentsForRestructuring | (474)us-gaap_PaymentsForRestructuring | |
| Balance at the end of the period | $ 551us-gaap_RestructuringReserve | ||
| X | ||||||||||
|
- Definition
Amount of expenses associated with the termination of certain employees of acquired companies and the termination of certain office leases. No definition available.
|
| X | ||||||||||
|
- Definition
Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|