Long-Term Debt and Other Borrowings Schedule of Long Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term Debt, Excluding Current Maturities	$ 843,292	$ 842,871
Credit Agreement [Member]
Debt Instrument [Line Items]
Long-term Debt	746	2,622
Unamortized deferred finance costs	700	900
Compressco Partners Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	79,745	291,444
Compressco Partners Senior Notes 7.50% [Member]
Debt Instrument [Line Items]
Long-term Debt	399,613	344,172
Compressco Partners Second Lien Notes 10.00%/10.75% [Member]
Debt Instrument [Line Items]
Long-term Debt	157,475	0
Parent Company [Member]
Debt Instrument [Line Items]
Long-term Debt	205,713	204,633
Long-term Debt, Current Maturities	0	0
Long-term Debt, Excluding Current Maturities	205,713	204,633
Unamortized deferred finance costs	1,200
CSI Compressco [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 637,579	$ 638,238
CSI Compressco [Member] \| Compressco Partners Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate, stated percentage	7.25%	7.25%
Unamortized deferred finance costs	$ 600	$ 2,800
Debt Instrument, Unamortized Discount (Premium), Net	$ 400	1,700
CSI Compressco [Member] \| Compressco Partners Senior Notes 7.50% [Member]
Debt Instrument [Line Items]
Interest rate, stated percentage	7.50%
Unamortized deferred finance costs	$ 5,700	5,800
Debt Instrument, Unamortized Discount (Premium), Net	200	0
Debt Instrument, Unamortized Gain	5,600	0
CSI Compressco [Member] \| Compressco Partners Second Lien Notes 10.00%/10.75% [Member]
Debt Instrument [Line Items]
Unamortized deferred finance costs	1,300	0
Debt Instrument, Unamortized Discount (Premium), Net	800	0
Debt Instrument, Unamortized Gain	4,000	0
Revolving Credit Facility [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt	0	0
Unamortized deferred finance costs	0	1,000
Term Loan [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt	205,713	204,633
Unamortized deferred finance costs	8,800	9,500
Debt Instrument, Unamortized Discount (Premium), Net	$ 6,000	$ 6,400

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt discount (premium).

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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