Fair Value Measurements - Level 3 Fair Value of Certain Assets Measured on a Non-recurring Basis (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Goodwill [Roll Forward] | |||
| 43830 | $ 182,377 | ||
| Decrease from divestiture | (7,379) | ||
| Carrying value prior to impairment | $ 174,998 | ||
| Impairment charge | (30,945) | ||
| Carrying value after impairment | 144,053 | ||
| Carrying value of assets not subject to impairment charge | 94,073 | ||
| Balance as of December 31, 2020 | $ 238,126 | $ 276,450 | $ 198,622 |
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Goodwill, Gross, Excluding Assets Not Subject To Impairment Charge No definition available.
|
| X | ||||||||||
- Definition Goodwill, Gross, Subject To Impairment No definition available.
|
| X | ||||||||||
- Definition Goodwill, Gross, Subject to Impairment, Excluding Written off Related to Sale of Business Unit No definition available.
|
| X | ||||||||||
- Definition Goodwill, Net, Subject To Impairment No definition available.
|