SCHEDULE II: VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Sales and return allowances, discounts, chargebacks and rebates:
Movement in valuation and qualifying accounts
Balance at Beginning of Year	$ 122,517	$ 36,277	$ 19,730
Additions Charged as a Reduction to Revenue	339,094	217,336	73,898
Deductions	(327,964)	(131,096)	(57,351)
Balance at End of Year	133,647	122,517	36,277
Deferred tax assets valuation allowance:
Movement in valuation and qualifying accounts
Balance at Beginning of Year	573	4,310	2,670
Deductions		(3,737)
Balance at End of Year	45,206	573	4,310
Recorded (reversed) valuation allowance	$ 44,600	$ (3,700)	$ 1,600