CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 958,142	$ 1,025,851
Receivables, less allowance for doubtful accounts of $5,653 at March 31, 2021 and $6,091 at December 31, 2020	341,793	293,146
Inventories	304,636	289,910
Other current assets	46,573	48,324
Total current assets	1,651,144	1,657,231
Property, plant and equipment - net	302,805	298,273
Goodwill	1,928,665	1,895,574
Intangible assets - net	441,640	415,563
Other noncurrent assets	136,477	147,757
Total assets	4,460,731	4,414,398
Current liabilities
Trade accounts payable	171,379	151,993
Accrued expenses	206,088	208,828
Short-term borrowings	46	88
Dividends payable	0	38,149
Total current liabilities	377,513	399,058
Long-term borrowings	1,044,589	1,044,354
Deferred income taxes	173,244	163,863
Other noncurrent liabilities	255,370	266,797
Total liabilities	1,850,716	1,874,072
Commitments and contingencies
Preferred stock:
Authorized: 5,000,000 shares, $.01 per share par value; Issued: None	0	0
Common stock:
Authorized: 150,000,000 shares, $.01 per share par value, Issued: 90,071,924 shares at March 31, 2021 and 90,071,763 shares at December 31, 2020	901	901
Additional paid-in capital	781,427	775,153
Retained earnings	2,954,254	2,841,546
Treasury stock at cost: 14,032,706 shares at March 31, 2021 and 14,111,221 shares at December 31, 2020	(1,066,101)	(1,063,872)
Accumulated other comprehensive income (loss)	(60,555)	(13,525)
Total shareholders’ equity	2,609,926	2,540,203
Noncontrolling interest	89	123
Total equity	2,610,015	2,540,326
Total liabilities and equity	$ 4,460,731	$ 4,414,398