CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 197,508	$ 198,248
Receivables, net	644,089	588,718
Inventories, net	446,689	428,879
Assets held for sale	29,687	27,584
Other current assets	83,417	57,395
Total current assets	1,401,390	1,300,824
Property, plant, and equipment, net	366,789	378,200
Goodwill	1,466,735	1,455,137
Other intangible assets, net	568,604	609,630
Operating lease right-of-use assets, net	144,274	150,898
Prepaid pension asset	105,963	92,531
Other assets	31,230	34,114
Total assets	4,084,985	4,021,334
Current liabilities:
Current portion of long-term debt	100,000	100,000
Accounts payable	166,253	201,237
Accrued expenses	133,264	146,833
Deferred revenue	260,358	253,411
Liabilities held for sale	10,573	10,141
Other current liabilities	104,024	98,755
Total current liabilities	774,472	810,377
Long-term debt	957,504	958,292
Deferred tax liabilities, net	121,895	115,007
Accrued pension and other postretirement benefit costs	97,143	98,345
Long-term operating lease liability	127,136	133,069
Long-term portion of environmental reserves	14,655	15,422
Other liabilities	97,476	103,248
Total liabilities	2,190,281	2,233,760
Stockholders' Equity
Common stock, $1 par value, 100,000,000 shares authorized as of June 30, 2021 and December 31, 2020; 49,187,378 shares issued as of June 30, 2021 and December 31, 2020; outstanding shares were 40,871,691 as of June 30, 2021 and 40,916,429 as of December 31, 2020	49,187	49,187
Additional paid in capital	119,946	122,535
Retained earnings	2,776,884	2,670,328
Accumulated other comprehensive loss	(297,531)	(310,856)
Common treasury stock, at cost (8,315,687 shares as of June 30, 2021 and 8,270,949 shares as of December 31, 2020)	(753,782)	(743,620)
Total stockholders’ equity	1,894,704	1,787,574
Total liabilities and stockholders’ equity	$ 4,084,985	$ 4,021,334