CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 69,672	$ 56,916
Trade receivables - net of allowance for credit losses - 2021 - $5,652 and 2020 - $5,313	153,443	146,641
Other receivables	8,376	7,774
Inventories	194,524	198,019
Prepaid expenses and other current assets	16,541	13,120
Prepaid income taxes	3,683	3,688
Income tax refund receivables	3,543	3,549
Total current assets	449,782	429,707
Property and equipment:
Land and land improvements	28,180	28,400
Buildings	188,089	188,878
Manufacturing equipment	272,084	268,894
Furniture and fixtures	62,142	61,586
Leasehold improvements	47,217	48,800
Construction-in-progress	48,608	46,889
Total property and equipment	646,320	643,447
Less accumulated depreciation	(272,519)	(260,719)
Property and equipment - net	373,801	382,728
Other assets:
Goodwill	362,810	363,533
Deferred income tax assets	4,614	4,597
Right-of-use operating lease assets	70,767	78,240
Other assets	37,827	37,676
Total other assets	818,810	851,961
Total assets	1,642,393	1,664,396
Current liabilities:
Trade payables	53,809	49,837
Accrued expenses	135,013	111,944
Current portion of long-term debt	7,500	7,500
Short-term operating lease liabilities	11,721	12,903
Income taxes payable	2,561	2,820
Total current liabilities	210,604	185,004
Long-term debt	284,900	343,722
Deferred income tax liabilities	33,271	33,312
Long-term income taxes payable	347	347
Liabilities related to unrecognized tax benefits	1,016	1,016
Deferred compensation payable	17,055	16,808
Deferred credits	1,869	1,923
Long-term operating lease liabilities	65,841	70,941
Other long-term obligations	35,056	52,748
Total liabilities	649,959	705,821
Commitments and contingencies
Stockholders' equity:
Preferred stock - 5,000 shares authorized as of June 30, 2021 and December 31, 2020; no shares issued	0	0
Common stock, no par value; shares authorized - 2021 and 2020 - 100,000; issued and outstanding as of June 30, 2021 - 56,224 and December 31, 2020 - 55,623	623,591	606,224
Retained earnings	373,677	357,803
Accumulated other comprehensive loss	(4,834)	(5,452)
Total stockholders' equity	992,434	958,575
Total liabilities and stockholders' equity	1,642,393	1,664,396
Developed technology
Other assets:
Intangible assets	297,471	318,059
Other
Other assets:
Intangible assets	$ 45,321	$ 49,856