Customer, Supplier and Product Concentration (Tables)

12 Months Ended

Dec. 31, 2019

Risks and Uncertainties [Abstract]

Schedules of Concentration of Risk, by Risk Factor

The following table sets forth the Company’s gross trade accounts receivable, gross sales and net revenue disaggregated by major customers for the periods indicated:

Gross Accounts Receivable as of December 31,
	2019				2018				2017
Disaggregation of gross A/R by major customers	Gross Accounts Receivable		Gross Accounts Receivable %		Gross Accounts Receivable		Gross Accounts Receivable %		Gross Accounts Receivable		Gross Accounts Receivable %
Amerisource	$	56,945	22.0	%	$	55,160	17.9	%	$	99,771	26.3	%
Cardinal	40,158		15.6	%	59,443		19.3	%	79,731		21.1	%
McKesson	118,258		45.8	%	149,000		48.3	%	146,321		38.6	%
Combined Total	215,361		83.4	%	263,603		85.5	%	325,823		86.0	%
Other	42,812		16.6	%	44,702		14.5	%	52,936		14.0	%
Grand Total	$	258,173	100.0	%	$	308,305	100.0	%	$	378,759	100.0	%

Gross Sales
	2019				2018				2017
Disaggregation of gross sales by major customers	Gross Sales		Gross Sales %		Gross Sales		Gross Sales %		Gross Sales		Gross Sales %
Amerisource	$	348,030	20.8	%	$	386,543	20.5	%	$	554,690	23.6	%
Cardinal	354,253		21.2	%	390,438		20.7	%	411,458		17.5	%
McKesson	680,478		40.6	%	789,620		41.8	%	918,157		39.1	%
Combined Total	1,382,761		82.6	%	1,566,601		83.0	%	1,884,305		80.2	%
Other	291,435		17.4	%	321,261		17.0	%	466,766		19.8	%
Grand Total	$	1,674,196	100.0	%	$	1,887,862	100.0	%	$	2,351,071	100.0	%

Net Revenue
	2019				2018				2017
Disaggregation of net revenues by major customers	Net Revenue		Net Revenue %		Net Revenue		Net Revenue %		Net Revenue		Net Revenue %
Amerisource	$	138,667	20.3	%	$	144,776	20.9	%	$	160,671	19.1	%
Cardinal	115,489		16.9	%	109,747		15.8	%	150,257		17.9	%
McKesson	157,572		23.1	%	173,363		25.0	%	222,715		26.5	%
Combined Total	411,728		60.3	%	427,886		61.7	%	533,643		63.5	%
Other	270,701		39.7	%	266,132		38.3	%	307,402		36.5	%
Grand Total	$	682,429	100.0	%	$	694,018	100.0	%	$	841,045	100.0	%