Summary of Significant Accounting Policies - Intangible Assets and Goodwill (Details) - USD ($) |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
Finite-Lived Intangible Assets [Line Items] | |||
Goodwill and intangible asset impairment | $ 0 | $ 498,000 | $ 3,653,000 |
Facility trade name | |||
Finite-Lived Intangible Assets [Line Items] | |||
Finite-lived intangible asset, useful life | 30 years | ||
Customer relationships | |||
Finite-Lived Intangible Assets [Line Items] | |||
Finite-lived intangible asset, useful life | 20 years | ||
Minimum | Assembled occupancy | |||
Finite-Lived Intangible Assets [Line Items] | |||
Finite-lived intangible asset, useful life | 4 months | ||
Maximum | Assembled occupancy | |||
Finite-Lived Intangible Assets [Line Items] | |||
Finite-lived intangible asset, useful life | 8 months |