Allowances (Tables)

12 Months Ended

Dec. 31, 2016

Sales Returns and Allowances, Goods [Abstract]

Schedule of Allowances and Reserves

Changes in the China allowance for doubtful accounts, the reserve for sales returns and allowances, and unapplied rebates were:

	Allowance for doubtful accounts			Reserve for sales returns and allowances			Reserve for unapplied rebates			Total
China Operations	(in thousands)
Beginning balance at January 1, 2014	$	24		$	225		$	1,051		$	1,300
Reduction in revenue	—			6,921			—			6,921
Expense	8,552			—			—			8,552
Recoveries, applied amounts, and write-offs	(136		)	(3,103		)	7,572			4,333
Ending balance at December 31, 2014	8,440			4,043			8,623			21,106
Reduction in revenue	—			7,769			3,511			11,280
Expense	23,163			—			—			23,163
Recoveries, applied amounts, and write-offs	(1,315		)	(11,618		)	(6,172		)	(19,105		)
Ending balance at December 31, 2015	30,288			194			5,962			36,444
Reduction in revenue	—			9,243			1,380			10,623
Expense	1,097			—			—			1,097
Recoveries, applied amounts, and write-offs	(5,752		)	(8,575		)	(1,013		)	(15,340		)
Ending balance at December 31, 2016	$	25,633		$	862		$	6,329		$	32,824

Changes in the allowance for doubtful accounts, the reserve for sales returns and allowances, and unapplied rebates were:

	Allowance for doubtful accounts			Reserve for sales returns and allowances			Reserve for unapplied rebates			Total
	(in thousands)
Beginning balance at January 1, 2014	$	3,656		$	5,410		$	1,447		$	10,513
Reduction in revenues	—			69,834			5,397			75,231
Expense	12,087			—			—			12,087
Recoveries, applied amounts, and write-offs	(2,134		)	(68,030		)	4,725			(65,439		)
Ending balance at December 31, 2014	13,609			7,214			11,569			32,392
Reduction in revenues	—			71,649			11,106			82,755
Expense	26,225			—			—			26,225
Recoveries, applied amounts, and write-offs	(3,466		)	(74,224		)	(14,318		)	(92,008		)
Ending balance at December 31, 2015	36,368			4,639			8,357			49,364
Reduction in revenues	—			72,995			9,036			82,031
Expense	6,079			—			—			6,079
Recoveries, applied amounts, and write-offs	(9,591		)	(71,513		)	(8,232		)	(89,336		)
Ending balance at December 31, 2016	$	32,856		$	6,121		$	9,161		$	48,138