Accounting Policies	3 Months Ended
Mar. 31, 2018
Accounting Policies [Abstract]
Accounting Policies	Accounting Policies Principles of Consolidation: The consolidated financial statements include the accounts of the company and its wholly owned subsidiaries and include all adjustments, which were of a normal recurring nature, necessary to present fairly the financial position of the company as of March 31, 2018 and the results of its operations and changes in its cash flow for the three months ended March 31, 2018 and 2017, respectively. Certain foreign subsidiaries, represented by the European segment, are consolidated using a February 28 quarter end to meet filing deadlines. No material subsequent events have occurred related to the European segment, which would require disclosure or adjustment to the company's financial statements. All significant intercompany transactions are eliminated. The results of operations for the three months ended March 31, 2018 are not necessarily indicative of the results to be expected for the full year. Use of Estimates: The consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States, which require management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results may differ from these estimates. Accounts Receivable: The company records accounts receivable when control of the product or service transfers to its unaffiliated customers, risk of loss is passed and title is transferred. The estimated allowance for uncollectible amounts is based primarily on management's evaluation of the financial condition of specific customers. The company records accounts receivable reserves for amounts that may become uncollectible in the future. The company writes off accounts receivable when it becomes apparent, based upon customer circumstances, that such amounts will not be collected and when legal remedies are exhausted. Reserves for customer bonus and cash discounts are recorded as a reduction in revenue and netted against gross accounts receivable. Customer rebates in excess of a given customer's accounts receivable balance are classified in Accrued Expenses. Customer rebates and cash discounts are estimated based on the most likely amount principle as well as historical experience and anticipated performance. In addition, customers have the right to return product within the company’s normal terms policy, and as such the company estimates the expected returns based on an analysis of historical experience and adjusts revenue accordingly. Recent Accounting Pronouncements (Already Adopted): In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers," which replaces numerous requirements in U.S. GAAP and provides companies with a single revenue recognition model for recognizing revenue from contracts with customers. ASU 2014-09 requires a company to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods and services. The guidance requires five steps to be applied: 1) identify the contract(s) with customers, 2) identify the performance obligations in the contract, 3) determine the transaction price, 4) allocate the transaction price to the performance obligation in the contract and 5) recognize revenue when (or as) the entity satisfies a performance obligation. The guidance also requires both quantitative and qualitative disclosures, which are more comprehensive than previous revenue standards. The disclosures are intended to enable financial statement users to understand the nature, timing and uncertainty of revenue and the related cash flow. Effective January 1, 2018, the company adopted the new accounting standard, and all the related amendments, on a modified retrospective basis, with no cumulative effect adjustment to equity needed. Upon adoption, the standard did not have a material impact on the company's results of operations or cash flows nor does the company expect it to have a material impact on future periods. Pursuant to ASU 2014-09, revenues are recognized as control transfers to the customers, which is consistent with the prior revenue recognition model and the prior accounting for the vast majority of the company's contracts. While the company does have a minor amount of service business for which revenue is recognized over time as compared to a point in time, the company’s process to estimate the amount of revenue to be recognized did not change as a result of the implementation of the new standard. Recent Accounting Pronouncements (Not Yet Adopted): In February 2016, the FASB issued ASU 2016-02, "Leases." ASU 2016-02 requires lessees to put most leases on their balance sheet while recognizing expense in a manner similar to existing accounting. The new accounting guidance is effective for fiscal periods beginning after December 15, 2018 and early adoption is permitted. The company is currently reviewing the impact of the adoption of ASU 2016-02 on the company's financial statements. In June 2016, the FASB issued ASU 2016-13, "Measurement of Credit Losses on Financial Statements." ASU 2016-13 requires a new credit loss standard for most financial assets and certain other instruments. For example, entities will be required to use an "expected loss" model that will generally require earlier recognition of allowances for losses for trade receivables. The standard also requires additional disclosures, including disclosures regarding how an entity tracks credit quality. The amendments in the pronouncement are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Entities may early adopt the amendments as of fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The company is currently reviewing the impact of the adoption of ASU 2016-13 on the company's financial statements. In January 2017, the FASB issued ASU 2017-04, "Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment". The guidance in ASU 2017-04 eliminates the requirement to determine the fair value of individual assets and liabilities of a reporting unit to measure goodwill impairment. Under the amendments in the new ASU, goodwill impairment testing will be performed by comparing the fair value of the reporting unit with its carrying amount and recognizing an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The new standard is effective for annual and interim goodwill impairment tests in fiscal years beginning after December 15, 2019, and should be applied on a prospective basis. Early adoption is permitted for annual or interim goodwill impairment testing performed after January 1, 2017. The company is currently reviewing the impact of the adoption of ASU 2017-04 but does not expect the adoption to impact the company's financial statements.

Accounting Policies

Principles of Consolidation: The consolidated financial statements include the accounts of the company and its wholly owned subsidiaries and include all adjustments, which were of a normal recurring nature, necessary to present fairly the financial position of the company as of March 31, 2018 and the results of its operations and changes in its cash flow for the three months ended March 31, 2018 and 2017, respectively. Certain foreign subsidiaries, represented by the European segment, are consolidated using a February 28 quarter end to meet filing deadlines. No material subsequent events have occurred related to the European segment, which would require disclosure or adjustment to the company's financial statements. All significant intercompany transactions are eliminated. The results of operations for the three months ended March 31, 2018 are not necessarily indicative of the results to be expected for the full year.

Use of Estimates: The consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States, which require management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results may differ from these estimates.

Accounts Receivable: The company records accounts receivable when control of the product or service transfers to its unaffiliated customers, risk of loss is passed and title is transferred. The estimated allowance for uncollectible amounts is based primarily on management's evaluation of the financial condition of specific customers. The company records accounts receivable reserves for amounts that may become uncollectible in the future. The company writes off accounts receivable when it becomes apparent, based upon customer circumstances, that such amounts will not be collected and when legal remedies are exhausted.

Reserves for customer bonus and cash discounts are recorded as a reduction in revenue and netted against gross accounts receivable. Customer rebates in excess of a given customer's accounts receivable balance are classified in Accrued Expenses. Customer rebates and cash discounts are estimated based on the most likely amount principle as well as historical experience and anticipated performance. In addition, customers have the right to return product within the company’s normal terms policy, and as such the company estimates the expected returns based on an analysis of historical experience and adjusts revenue accordingly.

Recent Accounting Pronouncements (Already Adopted):

In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers," which replaces numerous requirements in U.S. GAAP and provides companies with a single revenue recognition model for recognizing revenue from contracts with customers. ASU 2014-09 requires a company to recognize revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods and services. The guidance requires five steps to be applied: 1) identify the contract(s) with customers, 2) identify the performance obligations in the contract, 3) determine the transaction price, 4) allocate the transaction price to the performance obligation in the contract and 5) recognize revenue when (or as) the entity satisfies a performance obligation. The guidance also requires both quantitative and qualitative disclosures, which are more comprehensive than previous revenue standards. The disclosures are intended to enable financial statement users to understand the nature, timing and uncertainty of revenue and the related cash flow.

Effective January 1, 2018, the company adopted the new accounting standard, and all the related amendments, on a modified retrospective basis, with no cumulative effect adjustment to equity needed. Upon adoption, the standard did not have a material impact on the company's results of operations or cash flows nor does the company expect it to have a material impact on future periods. Pursuant to ASU 2014-09, revenues are recognized as control transfers to the customers, which is consistent with the prior revenue recognition model and the prior accounting for the vast majority of the company's contracts. While the company does have a minor amount of service business for which revenue is recognized over time as compared to a point in time, the company’s process to estimate the amount of revenue to be recognized did not change as a result of the implementation of the new standard.

Recent Accounting Pronouncements (Not Yet Adopted):

In February 2016, the FASB issued ASU 2016-02, "Leases." ASU 2016-02 requires lessees to put most leases on their balance sheet while recognizing expense in a manner similar to existing accounting. The new accounting guidance is effective for fiscal periods beginning after December 15, 2018 and early adoption is permitted. The company is currently reviewing the impact of the adoption of ASU 2016-02 on the company's financial statements.

In June 2016, the FASB issued ASU 2016-13, "Measurement of Credit Losses on Financial Statements." ASU 2016-13 requires a new credit loss standard for most financial assets and certain other instruments. For example, entities will be required to use an "expected loss" model that will generally require earlier recognition of allowances for losses for trade receivables. The standard also requires additional disclosures, including disclosures regarding how an entity tracks credit quality. The amendments in the pronouncement are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Entities may early adopt the amendments as of fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The company is currently reviewing the impact of the adoption of ASU 2016-13 on the company's financial statements.

In January 2017, the FASB issued ASU 2017-04, "Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment". The guidance in ASU 2017-04 eliminates the requirement to determine the fair value of individual assets and liabilities of a reporting unit to measure goodwill impairment. Under the amendments in the new ASU, goodwill impairment testing will be performed by comparing the fair value of the reporting unit with its carrying amount and recognizing an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The new standard is effective for annual and interim goodwill impairment tests in fiscal years beginning after December 15, 2019, and should be applied on a prospective basis. Early adoption is permitted for annual or interim goodwill impairment testing performed after January 1, 2017. The company is currently reviewing the impact of the adoption of ASU 2017-04 but does not expect the adoption to impact the company's financial statements.