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Fair Value Measurements - Measured on Nonrecurring Basis (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2021 USD ($) $ / hp Y	Dec. 31, 2020 USD ($) $ / hp
Valuation of our interest rate swaps and impaired assets
Goodwill impairment | $	$ 99,830
Impaired Long-Lived Assets | Compressors | Measurement Input, Sale proceeds | Minimum
Valuation of our interest rate swaps and impaired assets
Measurement input		0	0
Impaired Long-Lived Assets | Compressors | Measurement Input, Sale proceeds | Maximum
Valuation of our interest rate swaps and impaired assets
Measurement input		289	289
Impaired Long-Lived Assets | Compressors | Measurement Input, Sale proceeds | Weighted average
Valuation of our interest rate swaps and impaired assets
Measurement input		17	20
Level 3 | Impaired Long-Lived Assets | Compressors | Measurement Input, Weighted average disposal period
Valuation of our interest rate swaps and impaired assets
Measurement input | Y		4
Level 3 | Impaired Long-Lived Assets | Compressors | Measurement Input, Discount for market liquidity
Valuation of our interest rate swaps and impaired assets
Measurement input		0.79	0.81
Nonrecurring Basis | Level 3 | Impaired Long-Lived Assets | Compressors
Valuation of our interest rate swaps and impaired assets
Impaired assets | $		$ 3,318	$ 19,046

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