CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 631,439	$ 409,481
Trade accounts receivable, less allowances of $6,700 and $6,803, respectively	711,332	619,535
Inventories	798,837	677,534
Prepaid expenses and other current assets	154,241	92,643
Total current assets	2,295,849	1,799,193
Property, plant and equipment, net	1,993,877	1,840,758
Goodwill	2,038,408	1,741,496
Other intangible assets, net	830,772	637,208
Other assets, net	611,940	492,931
Total assets	7,770,846	6,511,586
Current liabilities:
Revolving loans and current portion of long-term debt	20,251	28,036
Trade accounts payable	1,133,318	802,541
Accrued payroll and related costs	109,279	130,088
Accrued liabilities	245,674	230,955
Total current liabilities	1,508,522	1,191,620
Long-term debt	3,772,926	3,223,217
Deferred income taxes	435,252	355,995
Other liabilities	491,450	487,881
Commitments and contingencies
Stockholders’ equity:
Common stock ($0.01 par value per share; 400,000,000 shares authorized, 175,112,496 shares issued and 110,410,229 and 110,057,027 shares outstanding, respectively)	1,751	1,751
Paid-in capital	325,448	306,363
Retained earnings	2,691,745	2,395,395
Accumulated other comprehensive loss	(259,828)	(260,953)
Treasury stock at cost (64,702,267 and 65,055,469 shares, respectively)	(1,196,420)	(1,189,683)
Total stockholders’ equity	1,562,696	1,252,873
Liabilities and equity, total	$ 7,770,846	$ 6,511,586