Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 168,514	$ 226,537
Trade accounts receivable, net	135,958	112,423
Inventories	252,996	232,274
Other current assets	26,473	14,013
Total current assets	583,941	585,247
Property, plant and equipment, net	273,020	232,810
Goodwill	137,140	124,479
Equity investment (see Note 6)	2,549	2,500
Intangible assets, net	29,326	22,864
Other noncurrent assets	11,547	12,074
Total assets	1,037,523	979,974
Current liabilities
Capital lease obligations - current portion	1,055	0
Trade accounts payable	31,536	27,674
Accrued liabilities	84,204	60,477
Accrued profit sharing trust contributions	7,054	6,549
Accrued cash profit sharing and commissions	9,416	10,527
Accrued workers’ compensation	3,226	3,569
Total current liabilities	136,491	108,796
Capital lease obligations - net of current portion	2,607	0
Deferred income tax and other long-term liabilities	13,647	5,336
Total liabilities	152,745	114,132
Commitments and contingencies (see Note 9)
Stockholders’ equity
Preferred stock, par value $0.01; authorized shares, 5,000; issued and outstanding shares, none	0	0
Common stock, par value $0.01; authorized shares, 160,000; issued and outstanding shares, 46,745 and 47,437 at December 31, 2017 and 2016, respectively	473	473
Additional paid-in capital	260,157	255,917
Retained earnings	676,644	642,422
Treasury stock	(40,000)	0
Accumulated other comprehensive loss	(12,496)	(32,970)
Total stockholders’ equity	884,778	865,842
Total liabilities and stockholders’ equity	$ 1,037,523	$ 979,974

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.