Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 245,088	$ 237,125
Trade accounts receivable, net of allowances of $15,569 and $25,068 as of March 31, 2014 and December 31, 2013, respectively	106,199	184,013
Inventories	211,519	260,791
Prepaid expenses	12,067	14,980
Other current assets	27,118	112,514
Deferred tax assets	21,871	19,881
Total current assets	623,862	829,304
Property and equipment, net of accumulated depreciation of $103,090 and $99,473 as of March 31, 2014 and December 31, 2013, respectively	184,570	174,066
Goodwill	127,934	128,725
Other intangible assets, net of accumulated amortization of $26,026 and $24,140 as of March 31, 2014 and December 31, 2013, respectively	91,411	93,278
Deferred tax assets	17,062	15,751
Other assets	19,365	18,605
Total assets	1,064,204	1,259,729
Current liabilities:
Short-term borrowings	6,702	9,728
Trade accounts payable	76,139	151,037
Accrued payroll	22,927	35,725
Other accrued expenses	11,624	45,301
Income taxes payable	2,908	49,453
Value added tax (VAT) payable	1,915	29,274
Total current liabilities	122,215	320,518
Long-term liabilities	53,140	51,092
Commitments and contingencies (note 9)
Stockholders' equity:
Common stock, $0.01 par value; authorized 125,000 shares; issued and outstanding 34,624 and 34,618 shares as of March 31, 2014 and December 31, 2013, respectively	346	346
Additional paid-in capital	146,731	143,916
Retained earnings	743,815	746,500
Accumulated other comprehensive loss	(2,043)	(2,643)
Total stockholders' equity	888,849	888,119
Total liabilities and equity	$ 1,064,204	$ 1,259,729