Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 79,611	$ 117,676
Marketable securities	354	27,165
Trade accounts receivable, net of allowance for doubtful accounts of $6,728 and $5,647, respectively	372,159	338,594
Inventories	715,383	646,152
Deferred income tax assets	14,420	16,718
Other current assets	97,361	89,833
Prepaid income taxes	7,368	0
Total current assets	1,286,656	1,236,138
Property and equipment, less accumulated depreciation	516,427	435,601
Other assets, net	12,749	13,209
Total assets	1,815,832	1,684,948
LIABILITIES AND STOCKHOLDER'S EQUITY
Accounts payable	78,019	73,779
Accrued expenses	126,155	111,962
Income taxes payable	0	2,077
Total current liabilities	204,174	187,818
Deferred income tax liabilities	51,298	38,154
Commitments and contingencies (notes 5, 9, and 10)
Stockholders' equity:
Preferred stock, 5,000,000 shares authorized	0	0
Common stock, 400,000,000 shares authorized, 296,564,382 and 295,258,674 shares issued and outstanding, respectively	2,966	2,953
Additional paid-in capital	61,436	16,856
Retained earnings	1,477,601	1,424,371
Accumulated other comprehensive income	18,357	14,796
Total stockholders' equity	1,560,360	1,458,976
Total liabilities and stockholders' equity	$ 1,815,832	$ 1,684,948