Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Current assets
Cash and cash equivalents	$ 167,059	$ 226,537	$ 232,028
Trade accounts receivable, net	148,506	112,423	135,123
Inventories	256,271	232,274	210,787
Other current assets	13,744	14,013	13,284
Total current assets	585,580	585,247	591,222
Property, plant and equipment, net	250,465	232,810	216,660
Goodwill	135,113	124,479	125,614
Equity investment	2,607	2,500	0
Intangible assets, net	31,713	22,864	26,719
Other noncurrent assets	12,722	12,074	8,746
Total assets	1,018,200	979,974	968,961
Current liabilities
Capital lease obligation - current portion	521	0	0
Trade accounts payable	38,219	27,674	29,023
Accrued liabilities	67,183	60,477	49,849
Income taxes payable	2,290	0	2,824
Accrued profit sharing trust contributions	2,514	6,549	2,245
Accrued cash profit sharing and commissions	9,256	10,527	11,133
Accrued workers’ compensation	3,578	3,569	4,472
Total current liabilities	123,561	108,796	99,546
Capital lease obligation - net of current portion	1,610	0	0
Deferred income tax and other long-term liabilities	6,076	5,336	5,159
Total liabilities	131,247	114,132	104,705
Commitments and contingencies (see Note 8)
Stockholders’ equity
Common stock, at par value	475	473	484
Additional paid-in capital	259,167	255,917	238,040
Retained Earnings	656,959	642,422	648,321
Treasury stock	0	0	(3,502)
Accumulated other comprehensive loss	(29,648)	(32,970)	(19,087)
Total stockholders’ equity	886,953	865,842	864,256
Total liabilities and stockholders’ equity	$ 1,018,200	$ 979,974	$ 968,961

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).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
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.