Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2015

Principles of Consolidation

Our consolidated financial statements include the accounts of our wholly owned subsidiaries. We consolidate the financial statements of CSI Compressco LP ("CCLP") and its subsidiaries as part of our Compression Division. We control CCLP through our ownership of its general partner. The share of CCLP net assets and earnings that is not owned by us is presented as noncontrolling interest in our consolidated financial statements. Our cash flows from our investment in CCLP are limited to the quarterly distributions we receive or the amounts collected for services performed on behalf of CCLP, as TETRA's capital structure and CCLP's capital structure are separate, as we have no cross default provisions, cross collateralization provisions, or cross guarantees with CCLP's debt, nor does CCLP with TETRA's debt. As of December 31, 2015, our consolidated balance sheet includes $332.2 million of restricted net assets, consisting of the consolidated net assets of CCLP. As our net investment in CCLP's assets exceeds 25.0% of our consolidated net assets, we have provided condensed parent company financial information in a supplemental schedule accompanying these consolidated financial statements. Our interests in oil and gas properties are proportionately consolidated. All intercompany accounts and transactions have been eliminated in consolidation.

Use of estimates policy

Use of Estimates

The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclose contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues, expenses, and impairments during the reporting period. Actual results could differ from those estimates, and such differences could be material.

Reclassifications policy

Reclassifications and Adjustments

Certain previously reported financial information has been reclassified to conform to the current year's presentation. The impact of such reclassifications was not significant to the prior year's overall presentation.

During the fourth quarter of 2015, we recorded a correcting adjustment to equity-based compensation expense of approximately $6.7 million. The impact of this adjustment was not significant to the current, or any prior, financial reporting period.

Cash and cash equivalents policy

Cash Equivalents

We consider all highly liquid cash investments with a maturity of three months or less when purchased to be cash equivalents.

Restricted cash policy

Restricted Cash

Restricted cash is classified as a current asset when it is expected to be repaid or settled in the next twelve month period. Restricted cash reported on our balance sheet as of December 31, 2015, consists primarily of escrowed cash associated with our July 2011 purchase of a heavy lift derrick barge. The escrowed cash is expected to be released to the sellers in 2016.

Financial instruments policy

Financial Instruments

Financial instruments that subject us to concentrations of credit risk consist principally of trade receivables with companies in the energy industry. Our policy is to evaluate, prior to providing goods or services, each customer's financial condition and to determine the amount of open credit to be extended. We generally require appropriate, additional collateral as security for credit amounts in excess of approved limits. Our customers consist primarily of major, well-established oil and gas producers and independent oil and gas companies. Payment terms are on a short-term basis. The risk of loss from the inability to collect trade receivables, including certain long-term contractual receivables of our Maritech segment, is heightened during prolonged periods of low oil and natural gas commodity prices.

We have currency exchange rate risk exposure related to transactions denominated in a foreign currency as well as to investments in certain of our international operations. Our risk management activities include the use of foreign currency forward purchase and sale derivative contracts as part of a program designed to mitigate the currency exchange rate risk exposure on selected international operations.

As a result of the outstanding balances under our variable rate revolving credit facilities, we face market risk exposure related to changes in applicable interest rates. Although we have no interest rate swap contracts outstanding to hedge this potential risk exposure, we have entered into certain fixed interest rate notes, which are scheduled to mature at various dates from 2017 through 2022 and which mitigate this risk on our total outstanding borrowings.

Allowances for doubtful accounts policy

Allowances for Doubtful Accounts

Allowances for doubtful accounts are determined generally and on a specific identification basis when we believe that the collection of specific amounts owed to us is not probable. The changes in allowances for doubtful accounts for the three year period ended December 31, 2015, are as follows:



	Year Ended December 31,
	2015			2014		2013
	(In Thousands)
At beginning of period	$	2,485		$	1,349	$	1,085
Activity in the period:
Provision for doubtful accounts	5,387			856		374
Account (chargeoffs) recoveries	(25		)	280		(110		)
At end of period	$	7,847		$	2,485	$	1,349

Inventories policy

Inventories

Inventories are stated at the lower of cost or market value. Cost is determined using the weighted average method. Components of inventories as of December 31, 2015, and December 31, 2014, are as follows:



	December 31,
	2015		2014
	(In Thousands)
Finished goods	$	54,587	$	62,188
Raw materials	1,731		5,005
Parts and supplies	37,379		51,229
Work in progress	23,312		70,935
Total inventories	$	117,009	$	189,357

Finished goods inventories includes newly manufactured clear brine fluids as well as recycled brines that are repurchased from certain customers. Recycled brines are recorded at cost, using the weighted average method. Work in progress inventories consist primarily of new compressor packages located in the CCLP fabrication facility in Midland, Texas. The cost of work in process is determined using the specific identification method. We write down the value of inventory by an amount equal to the difference between the cost of the inventory and its estimated realizable value.

Assets held for sale policy

Assets Held for Sale

Assets are classified as held for sale when, among other factors, they are identified and marketed for sale in their present condition, management is committed to their disposal, and the sale of the asset is probable within one year. Assets Held for Sale as of December 31, 2015, consists of certain compressor equipment assets to be sold during 2016. Assets Held for Sale as of December 31, 2014, consists of certain equipment assets that were sold during the first quarter of 2015.

Property, plant, and equipment policy

Property, Plant, and Equipment

Property, plant, and equipment are stated at cost. Expenditures that increase the useful lives of assets are capitalized. The cost of repairs and maintenance is charged to operations as incurred. For financial reporting purposes, we provide for depreciation using the straight-line method over the estimated useful lives of assets, which are generally as follows:



Buildings		15 – 40 years
Barges and vessels		5 – 30 years
Machinery and equipment		2 – 20 years
Automobiles and trucks		3 – 4 years
Chemical plants		15 – 30 years
Compressors		12 – 20 years

Leasehold improvements are depreciated over the shorter of the remaining term of the associated lease or its useful life. Depreciation expense, excluding long-lived asset impairments for the years ended December 31, 2015, 2014, and 2013 was $138.2 million, $109.2 million, and $76.9 million, respectively.

Interest capitalized for the years ended December 31, 2015, 2014, and 2013 was $0.4 million, $0.8 million, and $1.6 million, respectively.

Intangible assets other than goodwill policy

Intangible Assets other than Goodwill

Patents, trademarks, and other intangible assets are recorded on the basis of cost and are amortized on a straight-line basis over their estimated useful lives, ranging from 2 to 20 years. During 2014, as part of three acquisitions consummated during the year, we acquired intangible assets having a fair value of approximately $92.6 million with estimated useful lives ranging from 2 to 20 years (having a weighted average useful life of 12.5 years). Amortization expense of patents, trademarks, and other intangible assets was $14.8 million, $9.3 million, and $5.0 million for the years ended December 31, 2015, 2014, and 2013, respectively, and is included in depreciation, amortization and accretion. The estimated future annual amortization expense of patents, trademarks, and other intangible assets is $8.7 million for 2016, $8.4 million for 2017, $8.2 million for 2018, $8.1 million for 2019, and $8.0 million for 2020.

Intangible assets are tested for recoverability whenever events or changes in circumstances indicate that the carrying value of the asset may not be recoverable. In such an event, we will determine the fair value of the asset using an undiscounted cash flow analysis of the asset at the lowest level for which identifiable cash flows exist. If an impairment has occurred, we will recognize a loss for the difference between the carrying value and the estimated fair value of the intangible asset. During 2014 and 2015, certain intangible assets were impaired. See "Impairments of Long-Lived Assets" section below.

Goodwill policy

Goodwill

Goodwill represents the excess of cost over the fair value of the net assets of businesses acquired in purchase transactions. We perform a goodwill impairment test on an annual basis or whenever indicators of impairment are present. We perform the annual test of goodwill impairment following the fourth quarter of each year. The annual assessment for goodwill impairment begins with a qualitative assessment of whether it is “more likely than not” that the fair value of each reporting unit is less than its carrying value. This qualitative assessment requires the evaluation, based on the weight of evidence, of the significance of all identified events and circumstances for each reporting unit. Based on this qualitative assessment, we determined that, due to the significant decrease in oil and natural gas commodity prices and the resulting expected negative impact on demand for the products and services for each of our reporting units, it was “more likely than not” that the fair value of certain of our reporting units were less than their carrying values as of December 31, 2015.

When the qualitative analysis indicates that it is “more likely than not” that a reporting unit’s fair value is less than its carrying value, the resulting goodwill impairment test consists of a two-step accounting test performed on a reporting unit basis. The first step of the impairment test is to compare the estimated fair value with the recorded net book value (including goodwill) of our business. If the estimated fair value of the reporting unit is higher than the recorded net book value, no impairment is deemed to exist and no further testing is required. If, however, the estimated fair value of the reporting unit is below the recorded net book value, then a second step must be performed to determine the goodwill impairment required, if any. In this second step, the estimated fair value from the first step is used as the purchase price in a hypothetical acquisition of the reporting unit. Business combination accounting rules are followed to determine a hypothetical purchase price allocation to the reporting unit’s assets and liabilities. The residual amount of goodwill that results from this hypothetical purchase price allocation is compared to the recorded amount of goodwill for the reporting unit, and the recorded amount is written down to the hypothetical amount, if lower. The application of this second step under goodwill impairment testing may also result in impairments of other long-lived assets, including identified intangible assets. See Impairment of Long-Lived Assets section below for a discussion of other asset impairments that were identified as part of the testing of goodwill as of December 31, 2014, and December 31, 2015.

Because quoted market prices for our reporting units other than Compression are not available, our management must apply judgment in determining the estimated fair value of these reporting units for purposes of performing the goodwill impairment test. Management uses all available information to make these fair value determinations, including the present value of expected future cash flows using discount rates commensurate with the risks involved in the assets. The resultant fair values calculated for the reporting units are then compared to observable metrics for other companies in our industry or on mergers and acquisitions in our industry to determine whether those valuations, in our judgment, appear reasonable.

During the last half of 2014 and continuing throughout 2015, global oil and natural gas commodity prices, particularly crude oil, decreased significantly. This decrease in commodity prices has had, and is expected to continue to have, a negative impact on industry drilling and capital expenditure activity, which affects the demand for products and services of each of our reporting units. The accompanying decrease in our stock price during the last half of 2014 resulted in an overall reduction in our market capitalization as of December 31, 2014. As of December 31, 2015, our market capitalization was above the recorded net book value of our balance sheet, including all goodwill, however, due to decrease in the price per common unit of CCLP during 2015, CCLP's market capitalization as of December 31, 2015, was below the recorded net book value of its balance sheet, including all goodwill. The accounting principles regarding goodwill acknowledge that the observed market prices of individual trades of a company’s stock (and thus its computed market capitalization) may not be representative of the fair value of the company as a whole. Substantial value may arise from the ability to take advantage of synergies and other benefits that flow from control over another entity. Consequently, measuring the fair value of a collection of assets and liabilities that operate together in a controlled entity is different from measuring the fair value of a single share of that entity’s common stock. Therefore, once the fair value of the reporting units was determined, we also added a control premium to the calculations. This control premium is judgmental and is based on observed mergers and acquisitions in our industry.

As part of our internal annual business outlook for each of our reporting units that we perform during the fourth quarter of 2014 and 2015, we considered changes in the global economic environment which affected our stock price and market capitalization. As part of the first step of goodwill impairment testing, we updated our assessment of the future cash flows for each of our reporting units, applying expected long-term growth rates, discount rates, and terminal values that we consider reasonable for each reporting unit. Our Maritech reporting unit is excluded because it does not contain goodwill. We have calculated a present value of the respective cash flows for each of the other reporting units to arrive at an estimate of fair value under the income approach, and then used the market approach to corroborate these values.

Goodwill Impairment as of December 31, 2015. Throughout 2015 and particularly during the last half of the year, lower oil and natural gas commodity prices have resulted in a decreased demand for many of the products and services of each of our reporting units. However, based on updated assumptions as of December 31, 2015, we determined that the fair value of our Fluids Division was significantly in excess of its carrying value, which includes approximately $6.6 million of goodwill. Our Offshore Services and Maritech Divisions had no remaining goodwill as of December 31, 2015. Specifically to our Compression Division, demand for low-horsepower wellhead compression services and for sales of compressor equipment has decreased significantly and is expected to continue to be decreased for the foreseeable future. Accordingly, the fair value, including the market capitalization for CCLP, for the Compression reporting unit was less than its respective carrying value as of December 31, 2015. For our Production Testing Division, demand for production testing services has decreased in each of the market areas in which we operate, resulting in decreased estimated future cash flows. As a result, the fair value of the Production Testing reporting unit was also less than its respective carrying value as of December 31, 2015. After making the hypothetical purchase price adjustments as part of the second step of the goodwill impairment test, there was $92.4 million residual purchase price to be allocated to the goodwill of the Compression reporting unit and approximately $13.9 million residual purchase price to be allocated to the goodwill of the Production Testing reporting unit. Based on this analysis, we concluded that an impairment of $139.4 million of the $233.6 million of recorded goodwill for Compression and an impairment of $37.6 million of the $51.5 million of recorded goodwill for Production Testing was required.

Goodwill Impairments as of December 31, 2014. Based on the above assumptions as of December 31, 2014, we determined that the fair value of our Fluids Division was significantly in excess of its carrying value, which includes approximately $6.6 million of goodwill. The fair value of our Compression Division exceeded its carrying value by approximately 4%. Throughout 2014, challenging market conditions for our Production Testing and Offshore Services reporting units resulted in both of these reporting units performing below the expectations we had as of December 31, 2013. The late 2014 decrease in commodity prices further weakened these market conditions. Pricing and activity levels in many of the markets that the Production Testing reporting unit serves were affected by increased levels of competition. Our Offshore Services reporting unit experienced decreasing demand for its decommissioning, well abandonment, and contract diving services in the U.S. Gulf of Mexico, the primary market that it serves. Customer delays with regard to significant decommissioning and abandonment projects and the diminished pricing as a result of increased competition for customer projects combined to negatively affect 2014 profitability for the Offshore Services reporting unit. Accordingly, the fair values for the Production Testing and Offshore Services reporting units were less than their respective carrying values as of December 31, 2014. After making the hypothetical purchase price adjustments as part of the second step of the goodwill impairment test, there was $53.7 million residual purchase price to be allocated to the goodwill of Production Testing reporting unit and no residual purchase price to be allocated to the goodwill of Offshore Services. Based on this analysis, we concluded that an impairment of $60.4 million of recorded goodwill for Production Testing was required, and an impairment of the entire $3.9 million of recorded goodwill for Offshore Services was required.

Specific uncertainties affecting the estimated fair value of our Compression and Production Testing reporting units include the impact of competition, the trading prices of our common stock and the common unit price of CCLP, the price of oil and natural gas, future overall activity levels in the regions in which we operate, the activity levels of our significant customers, and other factors affecting the rate of future growth of these reporting units. These factors will continue to be reviewed and assessed during future periods. Negative developments with regard to these factors could have a further negative effect on the fair value of our Compression and Production Testing reporting units and could result in future additional impairment of goodwill. Subsequent to December 31, 2015, and as of March 3, 2016, the prices of our common stock and the common units of CCLP have continued to decline, and as a result future additional impairments are possible.

As of December 31, 2015, the carrying amount of goodwill for the Fluids, Production Testing, Compression, and Offshore Services reporting units are net of $23.8 million, $97.9 million, $139.4 million and $27.2 million, respectively, of accumulated impairment losses. The changes in the carrying amount of goodwill by reporting unit for the three year period ended December 31, 2015, are as follows:



	Fluids		Production Testing			Compression			Offshore Services			Maritech		Total
	(In Thousands)
Balance as of December 31, 2012	$	—	$	113,507		$	72,161		$	3,936		$	—	$	189,604
Goodwill adjustments	—		(1,445		)	—			—			—		(1,445		)
Balance as of December 31, 2013	—		112,062			72,161			3,936			—		188,159
Goodwill acquired during the year	6,636		5,809			161,387								173,832
Goodwill adjustments	—		(64,189		)	—			(3,936		)	—		(68,125		)
Balance as of December 31, 2014	6,636		53,682			233,548			—			—		293,866
Goodwill adjustments	—		(39,775		)	(141,146		)	—					(180,921		)
Balance as of December 31, 2015	$	6,636	$	13,907		$	92,402		$	—		$	—	$	112,945

Impairment of long-lived assets policy

Impairments of Long-Lived Assets

Impairments of long-lived assets, including identified intangible assets, are determined periodically when indicators of impairment are present. If such indicators are present, the determination of the amount of impairment is based on our judgments as to the future undiscounted operating cash flows to be generated from these assets throughout their remaining estimated useful lives. If these undiscounted cash flows are less than the carrying amount of the related asset, an impairment is recognized for the excess of the carrying value over its fair value. Assets held for disposal are recorded at the lower of carrying value or estimated fair value less estimated selling costs.

During the first quarter of 2014, the Offshore Services segment sold the TETRA DB-1 heavy lift barge for a sales price of $3.0 million. As a result, an additional impairment of approximately $9.3 million was recorded in December 2013 to reduce the carrying value of the TETRA DB-1 to the sales price.

During the fourth quarter of 2014, our Offshore Services segment recorded impairments of approximately $13.7 million, primarily associated with a portion of the carrying value of certain of its dive services vessels and equipment and other long lived assets due to expected decreased demand. Our Production Testing segment also recorded impairments of approximately $14.5 million, primarily associated with a portion of the carrying value of certain of its production testing equipment and certain identified intangible assets. Our Fluids Division also recorded impairments of approximately $5.2 million associated with certain of its water management business assets.

During the fourth quarter of 2015, our Compression and Production Testing segments recorded impairments of approximately $6.3 million and $12.3 million, respectively, associated with a portion of the carrying value of certain of long-lived assets due to expected decreased demand, and our Compression segment recorded approximately $5.7 million of impairments associated with certain identified intangible assets. Our Fluids Division also recorded impairments of approximately $19.9 million associated with certain of its water management business assets.

Decommissioning liabilities policy

Decommissioning Liabilities

Related to Maritech’s remaining oil and gas property decommissioning liabilities, we estimate the third-party fair values (including an estimated profit) to plug and abandon wells, decommission the pipelines and platforms, and clear the sites, and we use these estimates to record Maritech’s decommissioning liabilities, net of amounts allocable to joint interest owners.

In estimating the decommissioning liabilities, we perform detailed estimating procedures, analysis, and engineering studies. Whenever practical and cost effective, Maritech will utilize the services of its affiliated companies to perform well abandonment and decommissioning work. When these services are performed by an affiliated company, all recorded intercompany revenues are eliminated in the consolidated financial statements. The recorded decommissioning liability associated with a specific property is fully extinguished when the property is completely abandoned. The recorded liability is first reduced by all cash expenses incurred to abandon and decommission the property. If the recorded liability exceeds (or is less than) our actual out-of-pocket costs, the difference is credited (or charged) to earnings in the period in which the work is performed. We review the adequacy of our decommissioning liabilities whenever indicators suggest that the estimated cash flows underlying the liabilities have changed materially. The amount of work performed or estimated to be performed on a Maritech property asset retirement obligation may often exceed amounts previously estimated for numerous reasons. Property conditions encountered, including subsea, geological, or downhole conditions, may be different from those anticipated at the time of estimation due to the age of the property and the quality of information available about the particular property conditions. Additionally, the cost of performing work at locations damaged by hurricanes is particularly difficult to estimate due to the unique conditions encountered, including the uncertainty regarding the extent of physical damage to many of the structures. Lastly, previously plugged and abandoned wells have later exhibited a buildup of pressure, which is evidenced by gas bubbles coming from the plugged well head. Remediation work at previously abandoned well sites is particularly costly due to the lack of a platform from which to base these activities. The timing and amounts of these cash flows are subject to changes in the energy industry environment and may result in additional liabilities to be recorded, which, in turn, would result in direct charges to earnings. Decommissioning work performed for the years 2015, 2014, and 2013 was $10.3 million, $63.3 million, and $119.6 million, respectively. For a further discussion of adjustments and other activity related to Maritech’s decommissioning liabilities, including significant adjustments made during 2015, 2014, and 2013, see Note H – Decommissioning and Other Asset Retirement Obligations.

Environmental liabilities policy

Environmental Liabilities

Environmental expenditures that result in additions to property and equipment are capitalized, while other environmental expenditures are expensed. Environmental remediation liabilities are recorded on an undiscounted basis when environmental assessments or cleanups are probable and the costs can be reasonably estimated. Estimates of future environmental remediation expenditures often consist of a range of possible expenditure amounts, a portion of which may be in excess of amounts of liabilities recorded. In such an instance, we disclose the full range of amounts reasonably possible of being incurred. Any changes or developments in environmental remediation efforts are accounted for and disclosed each quarter as they occur. Any recoveries of environmental remediation costs from other parties are recorded as assets when their receipt is deemed probable.

Complexities involving environmental remediation efforts can cause estimates of the associated liability to be imprecise. Factors that cause uncertainties regarding the estimation of future expenditures include, but are not limited to, the effectiveness of the anticipated work plans in achieving targeted results and changes in the desired remediation methods and outcomes as prescribed by regulatory agencies. Uncertainties associated with environmental remediation contingencies are pervasive and often result in wide ranges of reasonably possible outcomes. Estimates developed in the early stages of remediation can vary significantly. Normally, a finite estimate of cost does not become fixed and determinable at a specific point in time. Rather, the costs associated with environmental remediation become estimable as the work is performed and the range of ultimate cost becomes more defined. It is possible that cash flows and results of operations could be materially affected by the impact of the ultimate resolution of these contingencies.

Revenue recognition policy

Revenue Recognition

We recognize revenue using the following criteria: (a) persuasive evidence of an exchange arrangement exists; (b) delivery has occurred or services have been rendered; (c) the buyer’s price is fixed or determinable; and (d) collectability is reasonably assured. Sales terms for our products are FOB shipping point, with title transferring at the point of shipment. Revenue is recognized at the point of transfer of title. With regard to longer-term lump-sum contracts, revenues are recognized using the percentage-of-completion method based on the ratio of costs incurred to total estimated costs at completion. Total project revenue and cost estimates for lump-sum contracts are reviewed periodically as work progresses, and adjustments are reflected in the period in which such estimates are revised. Provisions for estimated losses on such contracts are made in the period such losses are determined. Occasionally, we have contracts that contain multiple deliverables, and for such contracts the recognition of revenue is determined based on the realized market values received by the customer as well as the timing of collections under the contract. Collections associated with progressive billings to customers for the construction of compression equipment by our Compression Division is included in unearned income in the consolidated balance sheets.

Services and rentals revenues and costs policy

Services and Rentals Revenues and Costs

A portion of our services and rentals revenues consists of lease rental income pursuant to operating lease arrangements for compressors and other equipment assets. The following operating lease revenues and associated costs were included in services and rentals revenues and cost of services and rentals, respectively, in the accompanying consolidated statements of operations for each of the following periods:



	Year Ended December 31,
	2015		2014		2013
	(In Thousands)
Rental revenue	$	136,384	$	91,509	$	20,492
Rental expenses	$	67,718	$	43,240	$	8,422

Operating costs policy

Operating Costs

Cost of product sales includes direct and indirect costs of manufacturing and producing our products, including raw materials, fuel, utilities, labor, overhead, repairs and maintenance, materials, services, transportation, warehousing, equipment rentals, insurance, and certain taxes. In addition, cost of product sales includes oil and gas operating expense. Cost of services and rentals includes operating expenses we incur in delivering our services, including labor, equipment rental, fuel, repair and maintenance, transportation, overhead, insurance, and certain taxes. We include in product sales revenues the reimbursements we receive from customers for shipping and handling costs. Shipping and handling costs are included in cost of product sales. Amounts we incur for “out-of-pocket” expenses in the delivery of our services are recorded as cost of services and rentals. Reimbursements for “out-of-pocket” expenses we incur in the delivery of our services are recorded as service revenues. Depreciation, amortization, and accretion includes depreciation expense for all of our facilities, equipment and vehicles, amortization expense on our intangible assets, and accretion expense related to our decommissioning and other asset retirement obligations.

We include in general and administrative expense all costs not identifiable to our specific product or service operations, including divisional and general corporate overhead, professional services, corporate office costs, sales and marketing expenses, insurance, and certain taxes.

Repair costs and insurance recoveries policy

Repair Costs and Insurance Recoveries

Our Maritech subsidiary incurred significant damage to the majority of its offshore oil and gas producing platforms as a result of Hurricane Ike during 2008 and Hurricanes Katrina and Rita during 2005. As of December 31, 2015, the remaining work to be performed consists primarily of decommissioning and debris removal efforts on one of Maritech's production platforms that was destroyed. We estimate that the remaining future decommissioning and debris removal efforts associated with this remaining platform will cost approximately $7.8 million, net to our interest, and has been accrued as part of Maritech’s decommissioning liabilities. The actual cost to complete this hurricane response work could exceed this estimate and could result in significant charges to earnings in future periods.

When it is economical to purchase, we typically maintain insurance protection that we believe to be customary and in amounts sufficient to reimburse us for a majority of our casualty losses. Our insurance coverage is subject to certain overall coverage limits and deductibles. With regard to costs incurred that we believe will qualify for coverage under our various insurance policies, we recognize anticipated insurance recoveries when collection is deemed probable. Any recognition of anticipated insurance recoveries is used to offset the original charge to which the insurance recovery relates.

During December 2010, we initiated legal proceedings against one of Maritech’s underwriters that had disputed that certain hurricane damage related costs incurred or to be incurred qualified as covered costs pursuant to Maritech's windstorm insurance policies. In February 2013, we entered into a settlement agreement with the underwriter, whereby we received $7.6 million, a portion of which was credited to operating expenses during 2013.

Repair costs incurred and the net book value of any destroyed assets which are covered under our insurance policies that are anticipated to be recovered are included in accounts receivable. Repair costs not considered probable of collection are charged to earnings. Insurance recoveries in excess of destroyed asset carrying values and repair costs incurred are credited to earnings when received.

Equity-based compensation policy

Equity-Based Compensation

We and CCLP have various equity incentive compensation plans which provide for the granting of restricted common stock, options for the purchase of our common stock, and other performance-based, equity-based compensation awards to our executive officers, key employees, nonexecutive officers, consultants, and directors. Total equity-based compensation expense, net of taxes, for the three years ended December 31, 2015, 2014, and 2013, was $13.9 million, $4.7 million, and $4.8 million, respectively. Equity-based compensation expense during 2015 includes an immaterial correction of approximately $6.7 million. For further discussion of equity-based compensation, see Note K - Equity-Based Compensation.

Income tax policy

Income Taxes

Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis amounts. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of a change in tax rates is recognized as income or expense in the period that includes the enactment date. Beginning in 2014, a portion of the carrying value of certain deferred tax assets is subjected to a valuation allowance. See Note E - Income Taxes for further discussion.

Income (loss) per common share policy

Income (Loss) per Common Share

The calculation of basic earnings per share excludes any dilutive effects of options. The calculation of diluted earnings per share includes the dilutive effect of stock options, which is computed using the treasury stock method during the periods such options were outstanding. A reconciliation of the common shares used in the computations of income (loss) per common and common equivalent shares is presented in Note O – Income (Loss) Per Share.

Foreign currency translation policy

Foreign Currency Translation

We have designated the euro, the British pound, the Norwegian krone, the Canadian dollar, the Brazilian real, the Argentine peso, and the Mexican peso, respectively, as the functional currency for our operations in Finland and Sweden, the United Kingdom, Norway, Canada, Brazil, Argentina, and certain of our operations in Mexico. Effective January 1, 2014, we changed the functional currency in Argentina from the U.S. dollar to the Argentina peso. The U.S. dollar is the designated functional currency for all of our other foreign operations. The cumulative translation effect of translating the applicable accounts from the functional currencies into the U.S. dollar at current exchange rates is included as a separate component of equity. Foreign currency exchange gains and (losses) are included in Other Income (Expense) and totaled $(1.7) million, $(1.2) million, and $(1.8) million for the years ended December 31, 2015, 2014 and 2013, respectively.

Fair value measurements policy

Fair Value Measurements

Fair value is defined as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date” within an entity’s principal market, if any. The principal market is the market in which the reporting entity would sell the asset or transfer the liability with the greatest volume and level of activity, regardless of whether it is the market in which the entity will ultimately transact for a particular asset or liability or if a different market is potentially more advantageous. Accordingly, this exit price concept may result in a fair value that may differ from the transaction price or market price of the asset or liability.

Under generally accepted accounting principles, the fair value hierarchy prioritizes inputs to valuation techniques used to measure fair value. Fair value measurements should maximize the use of observable inputs and minimize the use of unobservable inputs, where possible. Observable inputs are developed based on market data obtained from sources independent of the reporting entity. Unobservable inputs may be needed to measure fair value in situations where there is little or no market activity for the asset or liability at the measurement date and are developed based on the best information available in the circumstances, which could include the reporting entity’s own judgments about the assumptions market participants would utilize in pricing the asset or liability.

We utilize fair value measurements to account for certain items and account balances within our consolidated financial statements. Fair value measurements are utilized in the allocation of purchase consideration for acquisition transactions to the assets and liabilities acquired, including intangible assets and goodwill (a level 3 fair value measurement). In addition, we utilize fair value measurements in the initial recording of our decommissioning and other asset retirement obligations. Fair value measurements may also be utilized on a nonrecurring basis, such as for the impairment of long-lived assets, including goodwill (a level 3 fair value measurement). The fair value of our financial instruments, which include cash, restricted cash, accounts receivable, short-term borrowings, and long-term debt pursuant to our bank credit agreements, approximate their carrying amounts. The aggregate fair values of our long-term Senior Notes and Senior Secured Notes (as such terms are herein defined) at December 31, 2015 and 2014, were approximately $229.8 million and $310.7 million, respectively, compared to carrying amounts of $385.0 million and $305.0 million, respectively, as current interest rates on those dates were different than the stated interest rates on the Senior Notes and Senior Secured Notes. The fair values of the publicly tradable CCLP Senior Notes (as herein defined) at December 31, 2015, were approximately $259.9 million (a level 2 fair value measurement). As of December 31, 2014, the fair value of the CCLP Senior Notes was approximately $354.9 million. The fair values of the CCLP Senior Notes compared to a face amount of approximately $350.0 million (See Note C - Long-Term Debt and Other Borrowings, for further discussion), as current rates on those dates were different from the stated interest rates on the CCLP Senior Notes. We calculated the fair values of our Senior Notes, our Senior Secured Notes and the CCLP Senior Notes as of December 31, 2015 and 2014, (excluding the CCLP Senior Notes as of December 31, 2015, since they are publicly tradable) internally, using current market conditions and average cost of debt (a level 2 fair value measurement).

We calculate the fair value of the liability for our contingent purchase price consideration obligation in accordance with the WIT Water Transfer, LLC (acquired in January 2014 and doing business as TD Water Transfer) share purchase agreement based upon a probability weighted calculation using the actual and anticipated earnings of the acquired operations (a level 3 fair value measurement). The fair value of the liability for the TD Water Transfer contingent purchase price consideration at December 31, 2015 and 2014, was $0.

We also utilize fair value measurements on a recurring basis in the accounting for our foreign currency forward sale derivative contracts. For these fair value measurements, we utilize the quoted value as determined by our counterparty financial institution (a level 2 fair value measurement). A summary of these fair value measurements as of December 31, 2015 and 2014, is as follows:



				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	Dec 31, 2015			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
Asset for foreign currency derivative contracts	$	23		$	—	$	23		$	—
Liability for foreign currency derivative contracts	(385		)	—		(385		)	—
Acquisition contingent consideration liability	—			—		—			—
Total	$	(362	)

A summary of these fair value measurements as of December 31, 2014, is as follows:



				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	Dec 31, 2014			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
Asset for foreign currency derivative contracts	$	—		$	—	$	—		$	—
Liability for foreign currency derivative contracts	(174		)	—		(174		)	—
Acquisition contingent consideration liability	—			—		—			—
Total	$	(174	)

During the fourth quarter of 2015, in connection with the review of goodwill impairment for our Compression and Production Testing Divisions, these segments recorded total impairment charges of approximately $177.0 million, reflecting the decreased fair value for certain assets. During 2014, in connection with the review of goodwill impairment of our Offshore Services and Production Testing Divisions, these segments recorded total impairment charges of approximately $64.3 million, reflecting the decreased fair value for these assets. For further discussion, see "Goodwill" and "Impairment of Long-Lived Assets" section above. The fair values used in these impairment calculations were estimated based on a variety of measurements, including current replacement cost, current market prices being received for similar vessels, and discounted estimated future cash flows, all of which are based on significant unobservable inputs (Level 3) in accordance with the fair value hierarchy. A summary of these nonrecurring fair value measurements as of December 31, 2015, using the fair value hierarchy is as follows:



			Fair Value Measurements Using
	Total as of		Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Year-to-Date Impairment Losses
Description	Dec 31, 2015				Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Year-to-Date Impairment Losses
	(In Thousands)
Compression equipment	$	772	$	—	$	—	$	772	$	6,300
Compression intangible assets	—		—		—		—		5,659
Compression goodwill	92,402		—		—		92,402		139,444
Production Testing equipment	14,476		—		—		14,476		12,310
Production Testing goodwill	13,907		—		—		13,907		37,562
Fluids equipment and facilities	6,323		—		—		6,323		19,889
Other	—		—		—		—		—
Total	$	127,880							$	221,164

A summary of these nonrecurring fair value measurements as of December 31, 2014, using the fair value hierarchy is as follows:



			Fair Value Measurements Using
	Total as of		Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Year-to-Date Impairment Losses
Description	Dec 31, 2014				Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Year-to-Date Impairment Losses
	(In Thousands)
Offshore Services assets	$	103,155	$	—	$	—	$	103,155	$	13,308
Offshore Services goodwill	—		—		—		—		3,936
Production Testing equipment	94,328		—		—		94,328		7,646
Production Testing intangible assets	34,941		—		—		34,941		6,831
Production Testing goodwill	53,681		—		—		53,681		60,359
Fluids equipment and facilities	1,225		—		—		1,225		5,201
Other	—		—		—		—		1,856
Total	$	287,330							$	99,137

New accounting pronouncements policy

New Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, "Revenue from Contracts with Customers." ASU No. 2014-09 supersedes the revenue recognition requirements in Accounting Standards Codification ("ASC") 605, Revenue Recognition, and most industry-specific guidance. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This ASU is effective for annual periods beginning after December 15, 2017, and interim periods within those years, under either full or modified retrospective adoption. We are currently assessing the potential effects of these changes to our consolidated financial statements.

In August 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements - Going Concern.” The ASU provides guidance on management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern and in certain circumstances to provide related footnote disclosures. The ASU is effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter. Early adoption is permitted. We do not expect the adoption of this standard to have a material impact on our consolidated financial statements.

In April 2015, the FASB issued ASU No. 2015-03, “Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs.” The ASU requires entities that have historically presented debt issuance costs as an asset to present those costs as a direct deduction from the carrying amount of the related debt liability. This presentation will result in the debt issuance costs being presented the same way debt discounts have historically been handled. The ASU does not change the recognition, measurement, or subsequent measurement guidance for debt issuance costs. The ASU is effective for the annual period beginning after December 15, 2015, and interim periods within those annual periods and is to be applied retrospectively. Early adoption is permitted. We plan to adopt this change retrospectively, and do not expect the adoption of this standard to have a material impact on our consolidated financial statements.

In July 2015, the FASB issued ASU No. 2015-11, “Simplifying the Measurement of Inventory,” which simplifies the subsequent measurement of inventory by requiring entities to measure inventory at the lower of cost or net realizable value, except for inventory measured using the last-in, first-out (LIFO) or the retail inventory methods. The ASU requires entities to compare the cost of inventory to one measure - net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The ASU is effective for the annual period beginning after December 15, 2015 and interim periods within those annual periods, with early adoption permitted, and is to be applied prospectively. We do not expect the adoption of this standard to have a material impact on our consolidated financial statements.

In September 2015, the FASB issued ASU No. 2015-16, “Simplifying the Accounting for Measurement Period Adjustments,” which requires that adjustments to provisional amounts identified during the measurement period of a business combination be recognized in the reporting period in which those adjustments are determined, including the effect on earnings, if any, calculated as if the accounting had been completed at the acquisition date. The ASU eliminates the previous requirement to retrospectively account for such adjustments and requires additional disclosures related to the income statement effects of adjustments to provisional amounts identified during the measurement period. The ASU is effective for the annual period beginning after December 15, 2015, and interim periods within those annual periods, with early adoption permitted, and is to be applied prospectively. We do not expect the adoption of this standard to have a material impact on our consolidated financial statements.

In November 2015, the FASB issued ASU 2015-17, Income Taxes Balance Sheet Classification of Deferred Taxes ("ASU 2015-17"). The update changes how deferred taxes are classified on the balance sheet, eliminating the existing requirement for organizations to present deferred tax liabilities and assets as current and noncurrent in a classified balance sheet. Instead, organizations will be required to classify all deferred tax assets and liabilities as noncurrent. The ASU is effective for fiscal years and interim periods within those years beginning after December 15, 2016. As permitted by ASU 2015-17, we elected to early adopt this guidance effective December 31, 2015, using the retrospective adoption. The impact of the retrospective adoption of this standard was not material to our consolidated financial statements.