Restructuring - Summary of Accruals of Restructuring Programs (Details) - USD ($) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
Jan. 01, 2019 |
Mar. 31, 2019 |
Mar. 31, 2018 |
|
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring Expenses, Net | $ 13,281 | $ 906 | |
| Contractual Lease Obligations | |||
| Restructuring Reserve [Roll Forward] | |||
| Balance at January 1, 2019 | $ 8,472 | 8,472 | |
| Restructuring Charges | 0 | ||
| Payments | 0 | ||
| Balance at March 31, 2019 | 0 | ||
| Severance | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Restructuring Expenses, Net | 1,136 | $ 514 | |
| Restructuring Reserve [Roll Forward] | |||
| Balance at January 1, 2019 | 651 | 651 | |
| Restructuring Charges | 1,136 | ||
| Payments | (1,033) | ||
| Balance at March 31, 2019 | 754 | ||
| Accounting Standards Update 2016-02 | Contractual Lease Obligations | |||
| Restructuring Reserve [Roll Forward] | |||
| Balance at January 1, 2019 | 0 | 0 | |
| Topic 842 Transition Adjustment | (8,472) | ||
| Accounting Standards Update 2016-02 | Severance | |||
| Restructuring Reserve [Roll Forward] | |||
| Balance at January 1, 2019 | 651 | $ 651 | |
| Topic 842 Transition Adjustment | $ 0 | ||