Components of Company Net Deferred Tax Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Net operating loss carryforwards	$ 44,942	$ 16,208
Tax credit carryforwards	143,987	171,840
Accrued expenses, reserves, and prepaids	79,029	30,626
Intangible assets	16,177	14,550
Stock-based compensation	49,322	34,133
Inventory	18,942	14,108
Impairment and capital loss carryforwards	5,005	1,997
Other	1,155	928
Valuation allowance	(67,708)	(7,812)
Total deferred tax assets	290,851	276,578
Joint venture basis difference	(1,888)	(1,781)
Acquired intangibles	(162,689)	(33,049)
Convertible notes discount	(32,162)	(39,317)
Property, plant and equipment	(13,192)	(4,932)
Unrealized gains	(4,256)	(6,525)
Total deferred tax liabilities	(214,187)	(85,604)
Net deferred tax assets	$ 76,664	$ 190,974