Statement Equity Components [Axis] Common Units [Member] Preferred Units [Member] Partner Type [Axis] General Partner [Member] Accumulated Other Comprehensive Gain (Loss) [Member] Noncontrolling Interests [Member] Other Commitments [Axis] Performance Obligation [Member] Loss Contingency Nature [Axis] Master Service Agreement Compliance Audits [Member] Litigation Case [Axis] Sun Mountain LLC v. TIR-PUC [Member] Segments [Axis] Environmental Services [Member] Customer [Axis] Sanchez Energy Corporation [Member] Credit Facility [Axis] Amended and Restated Credit Agreement [Member] Variable Rate [Axis] Base Rate [Member] Range [Axis] Minimum [Member] Maximum [Member] LIBOR [Member] Line of Credit [Member] Subsequent Event Type [Axis] Subsequent Event [Member] Related Party [Axis] Affiliated Entity [Member] Preferred Units [Member] Distribution Type [Axis] Total Cash Distribution [Member] Sale of Stock [Axis] Private Placement [Member] Redemption Period [Axis] Redemption Period Two [Member] Redemption Period Third [Member] Ownership [Axis] Brown Integrity, LLC [Member] CF Inspection Management, LLC [Member] Investment, Name [Axis] Alati Arnegard LLC [Member] Cynthia A. Fields [Member] Subsegments [Axis] Pipeline Inspection Segment [Member] Concentration Risk Benchmark [Axis] Revenues [Member] Pipeline Inspection [Member] Pipeline & Process Services [Member] Other [Member] Office Space Headquarters [Member] Measurement Input Type [Axis] Discount Rate [Member] Omnibus Agreement [Member] Statement Scenario [Axis] Scenario Forecast [Member] Measurement Input Commodity Forward Price [Member] Energy [Axis] Crude Oil [Member] Plan Name [Axis] Employee Unit Purchase Plan [Member] Document And Entity Information [Abstract] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Amendment Description Current Fiscal Year End Date Entity File Number Entity Incorporation, State or Country Code Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Document Fiscal Period Focus Document Fiscal Year Focus Statement of Financial Position [Abstract] ASSETS Current assets: Cash and cash equivalents Trade accounts receivable, net Prepaid expenses and other Total current assets Property and equipment: Property and equipment, at cost Less: Accumulated depreciation Total property and equipment, net Intangible assets, net Goodwill Finance lease right-of-use assets, net Operating lease right-of-use assets Debt issuance costs, net Other assets Total assets LIABILITIES AND OWNERS' EQUITY Current liabilities: Accounts payable Accounts payable - affiliates Accrued payroll and other Income taxes payable Finance lease obligations Operating lease obligations Total current liabilities Long-term debt Finance lease obligations Operating lease obligations Other noncurrent liabilities Total liabilities Commitments and contingencies - Note 7 Owners' equity: Partners' capital: Common units (12,202 and 12,068 units outstanding at March 31, 2020 and December 31, 2019, respectively) Preferred units (5,769 units outstanding at March 31, 2020 and December 31, 2019) General partner Accumulated other comprehensive loss Total partners' capital Noncontrolling interests Total owners' equity Total liabilities and owners' equity Common units outstanding (in shares) Preferred units outstanding (in shares) Income Statement [Abstract] Revenue Costs of services Gross margin Operating costs and expense: General and administrative Depreciation, amortization and accretion Gain on asset disposals, net Operating income Other (expense) income: Interest expense, net Foreign currency (losses) gains Other, net Net (loss) income before income tax expense Income tax expense Net (loss) income Net loss attributable to noncontrolling interests Net (loss) income attributable to limited partners Net income attributable to preferred unitholder Net (loss) income attributable to common unitholders Net (loss) income per common limited partner unit: Basic and diluted (in dollars per share) Weighted average common units outstanding: Basic (in units) Diluted (in units) Statement of Comprehensive Income [Abstract] Net (loss) income Other comprehensive income (loss) - foreign currency translation Comprehensive (loss) income Comprehensive loss attributable to noncontrolling interests Comprehensive income attributable to preferred unitholder Comprehensive (loss) income attributable to common unitholders Statement [Table] Statement [Line Items] Equity Components [Axis] Increase (Decrease) in Stockholders' Equity [Roll Forward] Owners' equity, beginning Net income (loss) Foreign currency translation adjustment Distributions Equity-based compensation Taxes paid related to net share settlement of equity-based compensation Owners' equity, ending Statement of Cash Flows [Abstract] Operating activities: Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities: Depreciation, amortization and accretion Interest expense from debt issuance cost amortization Equity-based compensation expense Equity in earnings of investee Foreign currency losses (gains) Changes in assets and liabilities: Trade accounts receivable Prepaid expenses and other Accounts payable and accounts payable - affiliates Accrued payroll and other Income taxes payable Net cash provided by (used in) operating activities Investing activities: Proceeds from fixed asset disposals Purchase of property and equipment, excluding finance leases Net cash used in investing activities Financing activities: Borrowings on credit facility Payments on credit facility Other Payments on finance lease obligations Taxes paid related to net share settlement of equity-based compensation Distributions Net cash provided by financing activities Effect of exchange rates on cash Net increase (decrease) in cash and cash equivalents Cash and cash equivalents, beginning of period (includes restricted cash equivalents of $551 at December 31, 2019 and December 31, 2018) Cash and cash equivalents, end of period (includes restricted cash equivalents of $551 at March 31, 2020 and March 31, 2019) Non-cash items: Accounts payable and accrued payroll and other excluded from capital expenditures Acquisitions of finance leases included in liabilities Restricted cash equivalents Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization and Operations Accounting Policies [Abstract] Basis of Presentation and Summary of Significant Accounting Policies Debt Disclosure [Abstract] Debt Income Tax Disclosure [Abstract] Income Taxes Equity [Abstract] Equity Related Party Transactions [Abstract] Related-Party Transactions Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Leases [Abstract] Leases Segment Reporting [Abstract] Reportable Segments Basis of Presentation Use of Estimates in the Preparation of Financial Statements Goodwill Property, Plant, and Equipment Accounts Receivable and Allowance for Bad Debts Accrued Payroll and Other Foreign Currency Translation New Accounting Standards Schedule of accrued payroll and other Schedule of the calculation of the basic net (loss) income per common limited partner unit Schedule of the calculation of the diluted net income (loss) per common limited partner unit Schedule of cash distributions declared and paid to our common partners Schedule of distributions paid to our preferred unitholder Schedule of operating income (loss) by reportable segment and a reconciliation of segment operating income to net income Statistical Measurement [Axis] Number of water treatment facilities Equity interest salt water disposal facility Number of EPA Class II injection wells Number of water treatment facilities connected to pipeline gathering systems Number of water treatment facilities connected to pipeline gathering systems developed and own Number of water treatment facilities wholly-own Accrued payroll Customer deposits Litigation settlement Other Total Scenario [Axis] Allowance for doubtful accounts receivable Accounts receivable Accounts receivable before allowance Goodwill measurement input Line of credit facility, maximum borrowing capacity Line of credit facility maturity date Credit facility, Average amount outstanding Debt issuance costs Debt issuance cost write-off Spread on variable rate borrowings Debt instrument, interest rate, effective percentage during period Debt instrument, interest rate, effective percentage Commitment fee rate, percentage Debt covenant total adjusted leverage ratio maximum Debt covenant interest coverage ratio minimum Total adjusted leverage ratio Interest coverage ratio Credit agreement minimum unused capacity at time of distributions Credit agreement available borrowings Interest expense including commitment fee Finance lease liabilities Payments on credit facility Threshold for nontaxation Weighted average common units outstanding Basic net (loss) income per common limited partner unit Effect of dilutive securities Long-term incentive plan unvested units Diluted weighted average common units outstanding Diluted net (loss) income per common limited partner unit Per Unit Cash Distribution (in dollars per share) Total Cash Distribution Total Distributions Computer and Office Equipment [Member] Number of units issued and sold in a private placement Price per unit (in dollars per unit) Proceeds of units sold in a private placement Annual rate of return of Preferred Units (percent) Dividend distribution to be paid in cash (percent) Dividend distribution to be paid in kind (percent) Percentage of income attributable to noncontrolling interests Redemption price as percent of issue price Percentage of partnership units held by affiliates Aggregate amount of common units authorized to issue under at-the-market program Number of common units authorized under program Percentage of annual base pay employees may elect to withhold to purchase common units Purchase price percentage of common units under program Annual fee per agreement Holdings administrative fees charged Ownership interest Management fee revenue from related parties Equity in earnings of investee Accounts receivable from related parties Investment in Arnegard Leverage ratio fee waiver Ownership interest Concentration percentage Short-term security deposits Compliance audit contigencies reserve Lawsuit filing date Amount alleged owed in lawsuit for services Name of Plaintiff Name of Defendant Settlement date Gain (loss) on settlement Costs savings from operating lease termination Revenues Gross margin (Losses) Gains on asset disposals, net Operating income (loss) Gains (losses) on foreign currency Net income (loss) before income tax expense Total assets Number of reportable segments Aggregate amount of net income allocated to preferred unitholders. Represents information related to comprehensive income attributable to preferred unit holders. The amount represent of comprehensive income attributable to common unit holders. The increase (decrease) during the reporting period in the aggregate value of all inventory, prepaid expenses and other assets held by the reporting entity, associated with underlying transactions that are classified as operating activities. The increase (decrease) during the period in accrued payroll and other accrued liabilities. The amountof accounts payable excluded from capital expenditures in noncash investing and financing activities. Disclosure of accounting policy for trade and other accounts receivable, and finance, loan and lease receivables, including those classified as held for investment and held for sale. This disclosure may include (1) the basis at which such receivables are carried in the entity's statements of financial position (2) how the level of the valuation allowance for receivables is determined (3) when impairments, charge-offs or recoveries are recognized for such receivables (4) the treatment of origination fees and costs, including the amortization method for net deferred fees or costs (5) the treatment of any premiums or discounts or unearned income (6) the entity's income recognition policies for such receivables, including those that are impaired, past due or placed on nonaccrual status and (7) the treatment of foreclosures or repossessions (8) the nature and amount of any guarantees to repurchase receivables and accounting policy for credit risk. Disclosure of accounting policy for accrued payroll and other liabilities. Tabular disclosure regarding accrued payroll and other. Represents information related to service units. Represents information related to performance units. Represents information related to market units. Tabular disclosure of information related to distributions declared including paid distributions. Obligations related to performance which are secured with short-term security deposits. The member represent office space headquaters. In the Water and Environmental Services segment, the entity waste water treatment and disposal services primarily for oil and natural gas producers and tucking companies, which specialize in water and environmental services. The equity interest in facility, expressed as a percentage. It represents member related to Sanchez Energy corporation. Information by type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing. Refers to maximum combined total adjusted leverage ratio as defined in credit agreement. Refers to minimum interest coverage ratio as defined in credit agreement. Total adjusted leverage ratio as on the balance sheet date. Refers to interest coverage ratio as on the balance sheet date. Minimum borrowing capacity that must be available under the credit agreement in order for the company to be able to make distributions. The cash outflow for interest paid on borrowings including commitment fees. The percentage, per a statutory requirement, of total gross income that must classify as qualifying income, as determined by the Internal Revenue Code and related announcements, in order for the company to maintain its ability to be taxed as a publicly-traded partnership. It represents member related to preferred units. Information about timing of preferred units redemption features under terms of the agreement. Period two representing after the third anniversary of the closing date and on or prior to the fourth anniversary of the closing date for redemption under terms of the agreement. Period three representing after the fourth anniversary of the closing date for redemption under terms of the agreement. Information pertaining to subsidiary Brown Integrity, LLC. Information pertaining to subsidiary CF Inspection Management, LLC. Percent that represents annual return on Preferred Units from quarterly distributions. Percent of annual return on investment to be cash per investment commitment. Percent of annual return on investment to be paid in kind per investment commitment. Refers to the percentage of income attributable to noncontrolling interests incurred during the period. Percentage price of original issue price at which preferrd units can be redeemed by the issuer. Percent of partnership units held by affiliates. Represents the agreement entered into by the entity at the closing of IPO with Cypress Holdings and other related parties. An entity that is partially owned by the entity that is accounted for under the equity method of accounting by the investor. The amount the leverage ratio were to exceed the trailing twelve-month Adjusted EBITDA at any quarter-end during the term of the facility in determing omnibus fee waiver. Information by pipeline inspection segement. Represents Pipeline Inspection segment. Information by pipeline and process. Sun Mountain LLCv TIRPUC1. Amount of costs savings for termination of this lease, net of termination fees, over the life of the lease. Value of input used to measure goodwill. Number of water treatment facilities. Number of water treatment facilities wholly owned. Number of EPA Class II injection wells. Number of water treatment facilities connected to pipeline gathering systems. Number of water treatment facilities connected to pipeline gathering systems developed and own. The amount of fixed annual fee (adjusted for inflation) per omnibus agreement that called for Holdings to provide certain general and administrative services, including executive management services and expenses associated with our being a publicly-traded entity (such as audit, tax, and transfer agent fees, among others). The amount of executive management services and other general and administrative expenses that Holdings incurred and charged directly to the enitty as they were incurred. Aggregate amount of common units authorized to issue under at-the-market equity program. Employee Unit Purchase Plan Percentage of annual base pay employees may elect to withhold to purchase common units under program. Threshold for nontaxation [Default Label] Assets, Current Property, Plant and Equipment, Net Liabilities, Current Finance Lease, Liability, Noncurrent Operating Lease, Liability, Noncurrent Liabilities Partners' Capital Partners' Capital, Including Portion Attributable to Noncontrolling Interest Liabilities and Equity Gain (Loss) on Disposition of Assets Net Income (Loss) Attributable to Parent Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Common Units [Member] [Default Label] Pipeline Inspection [Member] [Default Label] Partners' Capital Account, Distributions Share-based Payment Arrangement, Decrease for Tax Withholding Obligation Depreciation, Amortization and Accretion, Net Increase (Decrease) in Accounts Receivable celp_IncreaseDecreaseInInventoryPrepaidExpensesAndOtherAssets Omnibus Agreement [Member] [Default Label] Increase (Decrease) in Income Taxes Payable Net Cash Provided by (Used in) Operating Activities Payments to Acquire Property, Plant, and Equipment Net Cash Provided by (Used in) Investing Activities Finance Lease, Principal Payments Payment, Tax Withholding, Share-based Payment Arrangement Payments of Capital Distribution Net Cash Provided by (Used in) Financing Activities Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Other Accrued Liabilities, Current Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest