Restructuring Charges (Details) - USD ($) $ in Millions |
9 Months Ended | |||
|---|---|---|---|---|
Jan. 31, 2018 |
Jan. 12, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
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| Employee severance and benefits costs | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Total reduction in force expenses | $ 5.6 | |||
| 2018 Reduction in Force | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Reduction in force | 5.00% | |||
| Expected cash expenditures | $ 7.6 | |||
| 2017 Reduction in Force | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Reduction in force | 7.00% | |||
| 2017 Reduction in Force | Employee severance and benefits costs | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Expected cash expenditures | $ 6.0 | |||
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- Definition Amount of costs incurred to date for the specified restructuring cost. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The number of positions eliminated during the period as a percentage of total positions eliminated during the period in connection with the restructuring plan(s). No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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