Income Taxes (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Consolidated income before provision for income taxes [Abstract]
U.S.		$ 134,473	$ 184,476	$ 307,994
Foreign		77,486	114,031	248,946
Income before provision for income taxes		211,959	298,507	556,940
Current [Abstract]
Federal		6,328	37,402	81,871
State		1,483	2,095	361
Foreign		50,403	48,904	148,310
Current income tax expense (benefit)		58,214	88,401	230,542
Deferred [Abstract]
Federal		16,556	(380)	(2,831)
State		(674)	444	551
Foreign		4,817	20,866	(36,210)
Deferred income tax expense (benefit)		20,699	20,930	(38,490)
Provision for income taxes		78,913	109,331	$ 192,052
Deferred tax assets [Abstract]
Inventory differences		5,222	12,362
Foreign tax credit and other foreign benefits		86,729	116,603
Stock-based compensation		13,842	17,211
Accrued expenses not deductible until paid		46,597	48,189
Foreign currency exchange		8,976	10,774
Net operating losses		10,994	17,530
Capitalized research and development		1,632	3,362
Exchange gains and losses		55,643	41,542
Other		964	841
Gross deferred tax assets		230,599	268,414
Deferred tax liabilities [Abstract]
Intangibles step-up		13,607	15,106
Overhead allocation to inventory		5,101	10,781
Amortization of intangibles		18,733	18,374
Foreign outside basis in controlled foreign corporation		84,434	100,016
Other		35,257	48,187
Gross deferred tax liabilities		157,132	192,464
Valuation allowance		(49,271)	(35,999)
Deferred taxes, net		24,196	39,951
Deferred tax assets, net, classification [Abstract]
Net current deferred tax assets		0	40,840
Net noncurrent deferred tax assets		40,373	15,128
Total net deferred tax assets		40,373	55,968
Deferred tax liabilities, classification [Abstract]
Net current deferred tax liabilities		0	0
Net noncurrent deferred tax liabilities		16,177	16,017
Total net deferred tax liabilities		$ 16,177	$ 16,017
Effective income tax rate, continuing operations, tax rate reconciliation [Abstract]
Income taxes at statutory rate		35.00%	35.00%	35.00%
Foreign tax rate differential		0.92%	0.00%	(0.76%)
Non-deductible expenses		0.09%	0.12%	0.12%
Controlled foreign corporation losses		1.09%	1.48%	0.00%
Other		0.13%	0.03%	0.12%
Effective income tax rate, continuing operations		37.23%	36.63%	34.48%
Undistributed earnings of foreign subsidiaries		$ 70,000	$ 50,000	$ 50,000
Deferred tax liabilities undistributed foreign earnings		$ 3,400
Minimum [Member]
Operating loss carryforwards [Abstract]
Expiration date		Dec. 31, 2016
Maximum [Member]
Operating loss carryforwards [Abstract]
Expiration date		Dec. 31, 2025
Deferred Tax Asset Valuation Allowance [Member]
Valuation Allowance [Roll Forward]
Beginning balance, adjustments to inventory carrying value		$ 35,999	10,803	10,522
Additions charged to cost and expenses		12,948	28,687	278
Decreases	[1]	(2,943)	(3,546)	(165)
Adjustments	[2]	3,267	55	168
Ending balance, adjustments to inventory carrying value		49,271	$ 35,999	$ 10,803
Foreign Country [Member]
Operating loss carryforwards [Abstract]
Operating loss carryforwards		34,700
Operating loss carryforwards scheduled to expire		15,000
Operating loss carrying that will not expire		19,700
Operating loss carryforwards, valuation allowance		$ 28,400

[1] Decreases in valuation allowance due to lapse in statute of limitation of the net operating losses carryforward which had no impact to the income statement.

[2] Represents the net currency effects of translating valuation allowances at current rates of exchange.