Accounts Receivable, Sales and Allowances - Allowance for Customer Deductions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance	$ 259,379	$ 23,167	$ 23,838
Provision	1,455,730	834,246	201,387
Additions from acquisitions	291	79,564
Charges processed	(1,399,451)	(677,595)	(202,058)
Balance	315,949	259,379	23,167
Allowance for Sales Returns [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance	44,646	8,164	8,409
Provision	34,272	20,993	5,001
Additions from acquisitions		35,542
Charges processed	(30,584)	(20,053)	(5,246)
Balance	48,333	44,646	8,164
Charegebacks and Rebates [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance	198,112	12,882	13,452
Provision	1,361,030	775,964	183,403
Additions from acquisitions		38,500
Charges processed	(1,304,703)	(629,234)	(183,973)
Balance	254,440	198,112	12,882
Reserve for Cash Discount [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance	15,554	1,644	1,362
Provision	50,385	30,782	8,464
Additions from acquisitions		5,160
Charges processed	(55,860)	(22,032)	(8,182)
Balance	10,079	15,554	1,644
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance	309	25	30
Provision	840	247
Additions from acquisitions	291	51
Charges processed	140	(14)	(5)
Balance	1,579	309	25
Allowance for Promotions [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance	758	452	585
Provision	9,203	6,258	4,524
Additions from acquisitions		311
Charges processed	(8,443)	(6,262)	(4,657)
Balance	$ 1,518	$ 758	$ 452