Basis Of Presentation	9 Months Ended
Sep. 30, 2017
Basis Of Presentation [Abstract]
Basis Of Presentation	1. Basis of Presentation As used herein, the terms "We," "Company" and "Chemed" refer to Chemed Corporation or Chemed Corporation and its consolidated subsidiaries. We have prepared the accompanying unaudited consolidated financial statements of Chemed in accordance with Rule 10-01 of SEC Regulation S-X. Consequently, we have omitted certain disclosures required under generally accepted accounting principles in the United States (“GAAP”) for complete financial statements. The December 31, 2016 balance sheet data were derived from audited financial statements but do not include all disclosures required by GAAP. However, in our opinion, the financial statements presented herein contain all adjustments, consisting only of normal recurring adjustments, necessary to state fairly our financial position, results of operations and cash flows. These financial statements are prepared on the same basis as and should be read in conjunction with the audited Consolidated Financial Statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2016. EARNINGS PER SHARE In March 2016, the FASB issued Accounting Standards Update “ASU No. 2016-09 - Compensation – Stock Compensation” which is part of the FASB’s Simplification Initiative. The object of this initiative is to identify, evaluate, and improve areas of GAAP. The areas of simplification in this initiative involve several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The guidance was effective for fiscal years beginning after December 15, 2016. We adopted the applicable provisions of ASU 2016-09 on a prospective basis. The impact of this ASU on our financial statements for the quarter ended September 30, 2017 was to decrease our income tax expense by $1.8 million as the result of excess tax benefits on stock based compensation being recorded on the statements of income. This, combined with the required change in diluted share count, resulted in an increase to basic and diluted earnings per share of $0.11 and $0.09, respectively. The impact of this ASU on our financial statements for the nine months ended September 30, 2017 was to decrease our income tax expense by $8.1 million as the result of excess tax benefits on stock based compensation being recorded on the statements of income. This, combined with the required change in diluted share count, resulted in an increase to basic earnings per share by $0.51 and an increase to diluted earnings per share by $0.46. INCOME TAXES The effective tax rate for the three and nine month periods ended September 30, 2017 was 34.7% and 25.8%, respectively. These rates differ from the US statutory tax rates primarily as the result of the adoption of ASU 2016-09 described above.

1. Basis of Presentation

As used herein, the terms "We," "Company" and "Chemed" refer to Chemed Corporation or Chemed Corporation and its consolidated subsidiaries.

We have prepared the accompanying unaudited consolidated financial statements of Chemed in accordance with Rule 10-01 of SEC Regulation S-X. Consequently, we have omitted certain disclosures required under generally accepted accounting principles in the United States (“GAAP”) for complete financial statements. The December 31, 2016 balance sheet data were derived from audited financial statements but do not include all disclosures required by GAAP. However, in our opinion, the financial statements presented herein contain all adjustments, consisting only of normal recurring adjustments, necessary to state fairly our financial position, results of operations and cash flows. These financial statements are prepared on the same basis as and should be read in conjunction with the audited Consolidated Financial Statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, 2016.

EARNINGS PER SHARE

In March 2016, the FASB issued Accounting Standards Update “ASU No. 2016-09 - Compensation – Stock Compensation” which is part of the FASB’s Simplification Initiative. The object of this initiative is to identify, evaluate, and improve areas of GAAP. The areas of simplification in this initiative involve several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The guidance was effective for fiscal years beginning after December 15, 2016. We adopted the applicable provisions of ASU 2016-09 on a prospective basis. The impact of this ASU on our financial statements for the quarter ended September 30, 2017 was to decrease our income tax expense by $1.8 million as the result of excess tax benefits on stock based compensation being recorded on the statements of income. This, combined with the required change in diluted share count, resulted in an increase to basic and diluted earnings per share of $0.11 and $0.09, respectively. The impact of this ASU on our financial statements for the nine months ended September 30, 2017 was to decrease our income tax expense by $8.1 million as the result of excess tax benefits on stock based compensation being recorded on the statements of income. This, combined with the required change in diluted share count, resulted in an increase to basic earnings per share by $0.51 and an increase to diluted earnings per share by $0.46.

INCOME TAXES

The effective tax rate for the three and nine month periods ended September 30, 2017 was 34.7% and 25.8%, respectively. These rates differ from the US statutory tax rates primarily as the result of the adoption of ASU 2016-09 described above.