Revenue Recognition - Schedule of Major Categories of Sales-Related Deductions (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($)
Contract Charge - Backs and Sales Volume Allowances
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	$ 628,804
Provision related to sales recorded in the period	1,528,660
Credits/payments issued during the period	(1,650,651)
Balance, end of period	506,813
Cash Discount Allowances
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	22,690
Provision related to sales recorded in the period	52,431
Credits/payments issued during the period	(52,658)
Balance, end of period	22,463
Accrued Returns Allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	174,984
Provision related to sales recorded in the period	58,292
Credits/payments issued during the period	(48,441)
Balance, end of period	184,835
Accrued Medicaid and Commercial Rebates
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	131,088
Provision related to sales recorded in the period	57,108
Credits/payments issued during the period	(89,856)
Balance, end of period	$ 98,340