Summary of Significant Accounting Policies (10-Q) (Policies)	6 Months Ended
	Jun. 30, 2020
Accounting Changes and Error Corrections [Abstract]
Use of Estimates	Use of Estimates The preparation of our Condensed Consolidated Financial Statements in conformity with U.S. GAAP requires us to make estimates that affect the amounts and disclosures in the Condensed Consolidated Financial Statements, including the notes thereto, and elsewhere in this report. Uncertainties related to the magnitude and duration of COVID-19, the extent to which it will impact our estimated future financial results, worldwide macroeconomic conditions including interest rates, employment rates, consumer spending and health insurance coverage, the speed of the anticipated recovery and governmental and business reactions to the pandemic have increased the complexity of developing these estimates, including the allowance for expected credit losses and the carrying amounts of long-lived assets, goodwill and other intangible assets. Actual results may differ significantly from our estimates, including as a result of COVID-19.
Accounts Receivable	Accounts Receivable. The Company adopted Accounting Standards Codification (ASC) Topic 326, Financial Instruments-Credit Losses (ASC 326) on January 1, 2020. For further discussion of the adoption, refer to the “Recent Accounting Pronouncements Adopted or Otherwise Effective as of June 30, 2020” section below. Subsequent to the adoption of ASC 326, our accounts receivable balance is stated at amortized cost less an allowance for expected credit losses. In addition, our accounts receivable balance is reduced by certain sales deduction reserves where we have the right of offset with the customer. We generally do not require collateral.
Concentration of Credit Risk and Credit Losses	Concentrations of Credit Risk and Credit Losses. Financial instruments that potentially subject us to significant concentrations of credit risk consist primarily of cash equivalents, restricted cash equivalents and accounts receivable. From time to time, we invest our excess cash in high-quality, liquid money market instruments maintained by major banks and financial institutions. We have not experienced any losses on our cash equivalents.With respect to our accounts receivable, we have no history of significant losses. Approximately 86% and 88% of our gross trade accounts receivable balances represent amounts due from three customers (Cardinal Health, Inc., McKesson Corporation and AmerisourceBergen Corporation) at June 30, 2020 and December 31, 2019, respectively. We perform ongoing credit evaluations of these and our other customers based on information available to us. We consider these and other factors, including changes in the composition and aging of our accounts receivable, in developing our allowance for expected credit losses.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Adopted or Otherwise Effective as of June 30, 2020 In June 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-13, Measurement of Credit Losses on Financial Instruments (ASU 2016-13). ASU 2016-13, together with a series of subsequently-issued related ASUs, has been codified in ASC 326. ASC 326 establishes new requirements for companies to estimate expected credit losses when measuring certain financial assets, including accounts receivable. The Company adopted ASC 326 using a modified retrospective approach with an effective date of January 1, 2020. The adoption of ASC 326 did not have a material impact on the Company’s Condensed Consolidated Financial Statements.