Summary of Significant Accounting Policies	12 Months Ended
Dec. 31, 2014
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Cash and Cash Equivalents Cash and Cash Equivalents consist of all highly liquid investments with maturities of three months or less at the date of purchase. Fair Value of Financial Instruments The carrying amounts of cash and cash equivalents, receivables and payables approximated fair value because of the relatively short maturity of these instruments. See Note 12 for the fair value of derivative financial instruments. Inventories Inventories consist of oilfield and industrial finished goods. Inventories are stated at the lower of cost or market and using average cost methods. Allowances for excess and obsolete inventories are determined based on the Company’s historical usage of inventory on-hand as well as its future expectations. Property, Plant and Equipment Property, plant and equipment are stated at cost. Expenditures for major improvements that extend the lives of property and equipment are capitalized while minor replacements, maintenance and repairs are charged to expense as incurred. Disposals are removed at cost less accumulated depreciation with any resulting gain or loss reflected in the results of operations for the respective period. Depreciation is provided using the straight-line method over the estimated useful lives of individual items. Long-Lived Assets, Including Goodwill and Other Acquired Intangible Assets The Company evaluates the recoverability of property, plant and equipment and amortizable intangible assets, at the asset level, for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of these assets is measured by a comparison of the carrying amounts to the future undiscounted cash flows the assets are expected to generate. If such review indicates that the carrying amount of property and equipment and intangible assets is not recoverable, the carrying amount of such assets is reduced to fair value. The Company has not recorded any such impairment charge during the years presented. The Company reviews goodwill for impairment at least annually or more frequently if events or changes in circumstances indicate that the carrying value of goodwill may not be recoverable. The two-step goodwill impairment test is performed to review goodwill for impairment. The first step, identifying a potential impairment, compares the fair value of the reporting unit with its carrying amount. If the carrying amount exceeds its fair value, the second step would need to be performed; otherwise, no further step is required. The second step, measuring the impairment loss, compares the implied fair value of the goodwill with the carrying amount of the goodwill. Any excess of the goodwill carrying amount over the applied fair value is recognized as an impairment loss, and the carrying value of goodwill is written down to fair value. In addition to the recoverability assessment, the Company routinely reviews the remaining estimated useful lives of property, plant and equipment and amortizable intangible assets. If the Company reduces the estimated useful life assumption for any asset, the remaining unamortized balance is amortized or depreciated over the revised estimated useful life. Foreign Currency The functional currency for most of the Company’s foreign operations is the local currency. The cumulative effects of translating the balance sheet accounts from the functional currency into the U.S. dollar at current exchange rates are included in accumulated other comprehensive income (loss). Revenues and expenses are translated at average exchange rates in effect during the period. Certain foreign operations use the U.S. dollar as the functional currency. Accordingly, financial statements of these foreign subsidiaries are remeasured to U.S. dollars for consolidation purposes using current rates of exchange for monetary assets and liabilities and historical rates of exchange for nonmonetary assets and related elements of expense. Revenue and expense elements are remeasured at rates that approximate the rates in effect on the transaction dates. For all operations, gains or losses from remeasuring foreign currency transactions into the functional currency are included in other income. Net foreign currency transaction losses were $2 million, $2 million and $3 million for the years ending December 31, 2014, 2013 and 2012, respectively, and are included in other income (expense) in the accompanying consolidated statements of income. Revenue Recognition The Company sells products through store fronts, on-site and eCommerce. The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred, the sales price is fixed or determinable, and collectability is reasonably assured. Generally, across every channel, these conditions are met when the product is shipped or picked up by the customer. Revenues are presented net of return allowances and include freight charges billed to customers. Sales tax collected from customers is excluded from revenue in the accompanying consolidated statements of income. Cost of Products Cost of products includes the cost of inventory sold and related items, such as vendor consideration, inventory allowances and shipping and handling and inbound and outbound freight. Operating and Warehousing Costs Operating and Warehousing Costs include branch location and distribution center expenses (including compensation, benefits and rent). Vendor Consideration The Company receives funds from vendors in the normal course of business, principally as a result of purchase volumes. Generally, these vendor funds do not represent the reimbursement of specific, incremental and identifiable costs incurred by the Company to sell the vendor’s product. Therefore, the Company treats these funds as a reduction of inventory when purchased and once these goods are sold to third parties the associated amount is credited to cost of sales. The Company develops accrual rates for vendor consideration based on the provisions of the arrangements in place, historical trends, purchases and future expectations. Due to the complexity and diversity of the individual vendor agreements, the Company performs analyses and reviews historical trends throughout the year and confirms actual amounts with select vendors to ensure the amounts earned are appropriately recorded. Amounts accrued throughout the year could be impacted if actual purchase volumes differ from projected annual purchase volumes, especially in the case of programs that provide for increased funding when graduated purchase volumes are met. Income Taxes The liability method is used to account for income taxes. Deferred tax assets and liabilities are determined based on differences between the financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates that will be in effect when the differences are expected to reverse. Valuation allowances are established when necessary to reduce deferred tax assets to amounts which are more likely than not to be realized. Concentration of Credit Risk The Company grants credit to its customers, which operate primarily in the energy industry. Concentrations of credit risk are limited because the Company has a large number of geographically diverse customers, thus spreading trade credit risk. The Company controls credit risk through credit evaluations, credit limits and monitoring procedures. The Company performs periodic credit evaluations of its customers’ financial condition and generally does not require collateral, but may require letters of credit for certain international sales. Credit losses are provided for in the financial statements. Allowances for doubtful accounts are determined based on a continuous process of assessing the Company’s portfolio on an individual customer basis taking into account current market conditions and trends. This process consists of a thorough review of historical collection experience, current aging status of the customer accounts, and financial condition of the Company’s customers. Based on a review of these factors, the Company will establish or adjust allowances for specific customers. No single customer represents more than 10% of the Company’s revenue. The Company’s top 20 customers in aggregate represent approximately one-third of the Company’s revenue. Stock-Based Compensation Compensation expense for the Company’s stock-based compensation plans is measured using the fair value method required by ASC Topic 718 “Compensation—Stock Compensation” (“ASC Topic 718”). Under this guidance the fair value of stock option grants and restricted stock is amortized to expense using the straight-line method over the shorter of the vesting period or the remaining employee service period. The Company provides compensation benefits to employees and non-employee directors under share-based payment arrangements. Environmental Liabilities When environmental assessments or remediations are probable and the costs can be reasonably estimated, remediation liabilities are recorded on an undiscounted basis and are adjusted as further information develops or circumstances change. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported and contingent amounts of assets and liabilities as of the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Contingencies The Company accrues for costs relating to litigation claims and other contingent matters, when such liabilities become probable and reasonably estimable. Such estimates may be based on advice from third parties or on management’s judgment, as appropriate. Revisions to contingent liabilities are reflected in income in the period in which different facts or information become known or circumstances change that affect the Company’s previous judgments with respect to the likelihood or amount of loss. Amounts paid upon the ultimate resolution of contingent liabilities may be materially different from previous estimates and could require adjustments to the estimated reserves to be recognized in the period such new information becomes known. In circumstances where the most likely outcome of a contingency can be reasonably estimated, the Company accrues a liability for that amount. Where the most likely outcome cannot be estimated, a range of potential losses is established and if no one amount in that range is more likely than others, the low end of the range is accrued.

2. Summary of Significant Accounting Policies

Cash and Cash Equivalents

Cash and Cash Equivalents consist of all highly liquid investments with maturities of three months or less at the date of purchase.

Fair Value of Financial Instruments

The carrying amounts of cash and cash equivalents, receivables and payables approximated fair value because of the relatively short maturity of these instruments. See Note 12 for the fair value of derivative financial instruments.

Inventories

Inventories consist of oilfield and industrial finished goods. Inventories are stated at the lower of cost or market and using average cost methods. Allowances for excess and obsolete inventories are determined based on the Company’s historical usage of inventory on-hand as well as its future expectations.

Property, Plant and Equipment

Property, plant and equipment are stated at cost. Expenditures for major improvements that extend the lives of property and equipment are capitalized while minor replacements, maintenance and repairs are charged to expense as incurred. Disposals are removed at cost less accumulated depreciation with any resulting gain or loss reflected in the results of operations for the respective period. Depreciation is provided using the straight-line method over the estimated useful lives of individual items.

Long-Lived Assets, Including Goodwill and Other Acquired Intangible Assets

The Company evaluates the recoverability of property, plant and equipment and amortizable intangible assets, at the asset level, for possible impairment whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of these assets is measured by a comparison of the carrying amounts to the future undiscounted cash flows the assets are expected to generate. If such review indicates that the carrying amount of property and equipment and intangible assets is not recoverable, the carrying amount of such assets is reduced to fair value. The Company has not recorded any such impairment charge during the years presented.

The Company reviews goodwill for impairment at least annually or more frequently if events or changes in circumstances indicate that the carrying value of goodwill may not be recoverable. The two-step goodwill impairment test is performed to review goodwill for impairment. The first step, identifying a potential impairment, compares the fair value of the reporting unit with its carrying amount. If the carrying amount exceeds its fair value, the second step would need to be performed; otherwise, no further step is required. The second step, measuring the impairment loss, compares the implied fair value of the goodwill with the carrying amount of the goodwill. Any excess of the goodwill carrying amount over the applied fair value is recognized as an impairment loss, and the carrying value of goodwill is written down to fair value.

In addition to the recoverability assessment, the Company routinely reviews the remaining estimated useful lives of property, plant and equipment and amortizable intangible assets. If the Company reduces the estimated useful life assumption for any asset, the remaining unamortized balance is amortized or depreciated over the revised estimated useful life.

Foreign Currency

The functional currency for most of the Company’s foreign operations is the local currency. The cumulative effects of translating the balance sheet accounts from the functional currency into the U.S. dollar at current exchange rates are included in accumulated other comprehensive income (loss). Revenues and expenses are translated at average exchange rates in effect during the period. Certain foreign operations use the U.S. dollar as the functional currency. Accordingly, financial statements of these foreign subsidiaries are remeasured to U.S. dollars for consolidation purposes using current rates of exchange for monetary assets and liabilities and historical rates of exchange for nonmonetary assets and related elements of expense. Revenue and expense elements are remeasured at rates that approximate the rates in effect on the transaction dates. For all operations, gains or losses from remeasuring foreign currency transactions into the functional currency are included in other income. Net foreign currency transaction losses were $2 million, $2 million and $3 million for the years ending December 31, 2014, 2013 and 2012, respectively, and are included in other income (expense) in the accompanying consolidated statements of income.

Revenue Recognition

The Company sells products through store fronts, on-site and eCommerce. The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred, the sales price is fixed or determinable, and collectability is reasonably assured. Generally, across every channel, these conditions are met when the product is shipped or picked up by the customer. Revenues are presented net of return allowances and include freight charges billed to customers. Sales tax collected from customers is excluded from revenue in the accompanying consolidated statements of income.

Cost of Products

Cost of products includes the cost of inventory sold and related items, such as vendor consideration, inventory allowances and shipping and handling and inbound and outbound freight.

Operating and Warehousing Costs

Operating and Warehousing Costs include branch location and distribution center expenses (including compensation, benefits and rent).

Vendor Consideration

The Company receives funds from vendors in the normal course of business, principally as a result of purchase volumes. Generally, these vendor funds do not represent the reimbursement of specific, incremental and identifiable costs incurred by the Company to sell the vendor’s product. Therefore, the Company treats these funds as a reduction of inventory when purchased and once these goods are sold to third parties the associated amount is credited to cost of sales. The Company develops accrual rates for vendor consideration based on the provisions of the arrangements in place, historical trends, purchases and future expectations. Due to the complexity and diversity of the individual vendor agreements, the Company performs analyses and reviews historical trends throughout the year and confirms actual amounts with select vendors to ensure the amounts earned are appropriately recorded. Amounts accrued throughout the year could be impacted if actual purchase volumes differ from projected annual purchase volumes, especially in the case of programs that provide for increased funding when graduated purchase volumes are met.

Income Taxes

The liability method is used to account for income taxes. Deferred tax assets and liabilities are determined based on differences between the financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates that will be in effect when the differences are expected to reverse. Valuation allowances are established when necessary to reduce deferred tax assets to amounts which are more likely than not to be realized.

Concentration of Credit Risk

The Company grants credit to its customers, which operate primarily in the energy industry. Concentrations of credit risk are limited because the Company has a large number of geographically diverse customers, thus spreading trade credit risk. The Company controls credit risk through credit evaluations, credit limits and monitoring procedures. The Company performs periodic credit evaluations of its customers’ financial condition and generally does not require collateral, but may require letters of credit for certain international sales. Credit losses are provided for in the financial statements. Allowances for doubtful accounts are determined based on a continuous process of assessing the Company’s portfolio on an individual customer basis taking into account current market conditions and trends. This process consists of a thorough review of historical collection experience, current aging status of the customer accounts, and financial condition of the Company’s customers. Based on a review of these factors, the Company will establish or adjust allowances for specific customers. No single customer represents more than 10% of the Company’s revenue. The Company’s top 20 customers in aggregate represent approximately one-third of the Company’s revenue.

Stock-Based Compensation

Compensation expense for the Company’s stock-based compensation plans is measured using the fair value method required by ASC Topic 718 “Compensation—Stock Compensation” (“ASC Topic 718”). Under this guidance the fair value of stock option grants and restricted stock is amortized to expense using the straight-line method over the shorter of the vesting period or the remaining employee service period. The Company provides compensation benefits to employees and non-employee directors under share-based payment arrangements.

Environmental Liabilities

When environmental assessments or remediations are probable and the costs can be reasonably estimated, remediation liabilities are recorded on an undiscounted basis and are adjusted as further information develops or circumstances change.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported and contingent amounts of assets and liabilities as of the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Contingencies

The Company accrues for costs relating to litigation claims and other contingent matters, when such liabilities become probable and reasonably estimable. Such estimates may be based on advice from third parties or on management’s judgment, as appropriate. Revisions to contingent liabilities are reflected in income in the period in which different facts or information become known or circumstances change that affect the Company’s previous judgments with respect to the likelihood or amount of loss. Amounts paid upon the ultimate resolution of contingent liabilities may be materially different from previous estimates and could require adjustments to the estimated reserves to be recognized in the period such new information becomes known.

In circumstances where the most likely outcome of a contingency can be reasonably estimated, the Company accrues a liability for that amount. Where the most likely outcome cannot be estimated, a range of potential losses is established and if no one amount in that range is more likely than others, the low end of the range is accrued.