Segment Information and Net Sales (Tables)

6 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Schedule of Net Sales from Based on Location of the Subsidiary

The tables below set forth net sales based on the location of the subsidiary producing the net sale.

Three Months Ended June 30, 2019	Asia			North America			Europe			Consolidated
Total sales	$	319,740		$	173,694		$	66,124		$	559,558
Intercompany elimination		(116,105	)		(94,278	)		(27,169	)		(237,552	)
Net sales	$	203,635		$	79,416		$	38,955		$	322,006
Three Months Ended June 30, 2018	Asia			North America			Europe			Consolidated
Total sales	$	269,290		$	38,392		$	51,175		$	358,857
Intercompany elimination		(33,813	)		(6,358	)		(14,601	)		(54,772	)
Net sales	$	235,477		$	32,034		$	36,574		$	304,085
As of and for the
Six Months Ended June 30, 2019	Asia			North America			Europe			Consolidated
Total sales	$	593,640		$	274,974		$	117,176		$	985,790
Intercompany elimination		(189,702	)		(132,194	)		(39,595	)		(361,491	)
Net sales	$	403,938		$	142,780		$	77,581		$	624,299
Property, plant and equipment, net	$	399,378		$	22,450		$	48,862		$	470,690
Total assets	$	1,190,443		$	235,248		$	188,468		$	1,614,159
As of and for the
Six Months Ended June 30, 2018	Asia			North America			Europe			Consolidated
Total sales	$	513,820		$	65,228		$	101,173		$	680,221
Intercompany elimination		(65,640	)		(7,503	)		(28,481	)		(101,624	)
Net sales	$	448,180		$	57,725		$	72,692		$	578,597
Property, plant and equipment, net	$	410,207		$	25,540		$	24,490		$	460,237
Total assets	$	1,090,931		$	155,395		$	190,446		$	1,436,772

Schedule of Net Sales by Direct Sales or Distributor and Location

The tables below set forth the amount of net sales by type (direct sales or Distributor) and the location of the customer based on the location where the products were shipped for the three and six months ended June 30, 2019 and 2018:

	Net Sales for the Three Months Ended June 30,
	Direct Sales						Distributor
	2019			2018			2019			2018
China	$	59,685		$	54,747		$	100,567		$	111,818
U.S.		2,888			4,772			27,472			26,431
Korea		5,625			3,474			8,834			10,028
Germany		3,429			2,820			19,134			20,826
Singapore		154			624			14,920			19,571
Taiwan		675			922			20,907			15,828
All others (1)		36,257			16,663			21,459			15,561
Total	$	108,713		$	84,022		$	213,293		$	220,063
	Percent of Net Sales by Type for the Three Months Ended June 30,
	Direct Sales						Distributor
	2019			2018			2019			2018
China		55	%		65	%		47	%		51	%
U.S.		3	%		6	%		13	%		12	%
Korea		5	%		4	%		4	%		5	%
Germany		3	%		3	%		9	%		9	%
Singapore		—			1	%		7	%		9	%
Taiwan		1	%		1	%		10	%		7	%
All others (1)		33	%		20	%		10	%		7	%
Total		100	%		100	%		100	%		100	%
	Total Net Sales for the Three Months Ended June 30,
	Dollars						Percent of Net Sales
	2019			2018			2019			2018
China	$	160,252		$	166,565			50	%		55	%
U.S.		30,360			31,203			9	%		10	%
Korea		14,459			13,502			4	%		4	%
Germany		22,563			23,646			7	%		8	%
Singapore		15,074			20,195			5	%		7	%
Taiwan		21,582			16,750			7	%		6	%
All others (1)		57,716			32,224			18	%		10	%
Total	$	322,006		$	304,085			100	%		100	%

	Net Sales for the Six Months Ended June 30,
	Direct Sales						Distributor
	2019			2018			2019			2018
China	$	111,909		$	104,072		$	199,892		$	210,684
U.S.		6,121			8,457			57,970			47,531
Korea		10,763			7,551			16,994			18,913
Germany		6,457			5,925			36,650			42,431
Singapore		366			912			30,856			35,401
Taiwan		1,158			1,778			43,571			35,021
All others (1)		58,515			31,984			43,077			27,937
Total	$	195,289		$	160,679		$	429,010		$	417,918
	Percent of Net Sales by Type for the Six Months Ended June 30,
	Direct Sales						Distributor
	2019			2018			2019			2018
China		57	%		65	%		47	%		50	%
U.S.		3	%		5	%		14	%		11	%
Korea		6	%		5	%		4	%		5	%
Germany		3	%		4	%		9	%		10	%
Singapore		—			1	%		7	%		8	%
Taiwan		1	%		1	%		10	%		8	%
All others (1)		30	%		19	%		9	%		8	%
Total		100	%		100	%		100	%		100	%
	Total Net Sales for the Six Months Ended June 30,
	Dollar						Percent of Net Sales
	2019			2018			2019			2018
China	$	311,801		$	314,756			50	%		54	%
U.S.		64,091			55,988			10	%		10	%
Korea		27,757			26,464			4	%		5	%
Germany		43,107			48,356			7	%		8	%
Singapore		31,222			36,313			5	%		6	%
Taiwan		44,729			36,799			7	%		6	%
All others (1)		101,592			59,921			17	%		11	%
Total	$	624,299		$	578,597			100	%		100	%

(1) Represents countries with less than 3% of the total net sales each.