Fair Value Measurements - Measured on Nonrecurring Basis (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2020 USD ($)	Jun. 30, 2020 USD ($) Y $ / hp	Dec. 31, 2019 USD ($)
Valuation of our interest rate swaps and impaired assets
Goodwill impairment | $	$ 99,800	$ 99,830
Nonrecurring Basis | Level 3
Valuation of our interest rate swaps and impaired assets
Impaired compressors | $		$ 2,324	$ 5,859
Measurement Input, Discount for market liquidity | Weighted average
Valuation of our interest rate swaps and impaired assets
Measurement input		0.77
Impaired Long-Lived Assets | Measurement Input, Weighted average disposal period | Level 3 | Weighted average
Valuation of our interest rate swaps and impaired assets
Measurement input | Y		4
Impaired Long-Lived Assets | Measurement Input, Sale proceeds | Level 3 | Minimum
Valuation of our interest rate swaps and impaired assets
Measurement input		0
Impaired Long-Lived Assets | Measurement Input, Sale proceeds | Level 3 | Maximum
Valuation of our interest rate swaps and impaired assets
Measurement input		372
Impaired Long-Lived Assets | Measurement Input, Sale proceeds | Level 3 | Weighted average
Valuation of our interest rate swaps and impaired assets
Measurement input		21