CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 56,916	$ 44,320
Trade receivables - net of allowance for credit losses - 2020 - $5,313 and 2019 - $3,108	146,641	155,365
Other receivables	7,774	10,016
Inventories	198,019	225,698
Prepaid expenses and other current assets	13,120	12,497
Prepaid income taxes	3,688	3,491
Income tax refund receivables	3,549	3,151
Total current assets	429,707	454,538
PROPERTY AND EQUIPMENT:
Land and land improvements	28,400	27,554
Buildings	188,878	153,863
Manufacturing equipment	268,894	244,368
Furniture and fixtures	61,586	57,623
Leasehold improvements	48,800	43,311
Construction-in-progress	46,889	83,685
Total property and equipment	643,447	610,404
Less accumulated depreciation	(260,719)	(231,619)
Property and equipment - net	382,728	378,785
OTHER ASSETS:
Goodwill	363,533	353,193
Deferred income tax assets	4,597	3,788
Right-of-use operating lease assets	78,240	80,244
Other assets	37,676	41,461
Total other assets	851,961	923,998
TOTAL ASSETS	1,664,396	1,757,321
CURRENT LIABILITIES:
Trade payables	49,837	54,623
Accrued expenses	111,944	105,184
Current portion of long-term debt	7,500	7,500
Short-term operating lease liabilities	12,903	11,550
Income taxes payable	2,820	2,799
Total current liabilities	185,004	181,656
Long-term debt	343,722	431,984
Deferred income tax liabilities	33,312	45,236
Long-term income taxes payable	347	347
Liabilities related to unrecognized tax benefits	1,016	1,990
Deferred compensation payable	16,808	14,855
Deferred credits	1,923	2,122
Long-term operating lease liabilities	70,941	72,714
Other long-term obligations	52,748	56,473
Total liabilities	705,821	807,377
Commitments and contingencies
STOCKHOLDERS' EQUITY:
Preferred stock - 5,000 shares authorized as of December 31, 2020 and December 31, 2019; no shares issued	0	0
Common stock, no par value; shares authorized - 2020 and 2019 - 100,000; issued and outstanding as of December 31, 2020 - 55,623 and December 31, 2019 - 55,213	606,224	587,017
Retained earnings	357,803	368,221
Accumulated other comprehensive loss	(5,452)	(5,294)
Total stockholders' equity	958,575	949,944
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,664,396	1,757,321
Developed technology
OTHER ASSETS:
Intangible assets	318,059	379,529
Other
OTHER ASSETS:
Intangible assets	$ 49,856	$ 65,783