CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 216,344	$ 276,066
Receivables, net	636,058	593,755
Inventories, net	436,190	423,426
Other current assets	48,060	50,719
Total current assets	1,336,652	1,343,966
Property, plant, and equipment, net	375,582	374,660
Goodwill	1,112,781	1,088,032
Other intangible assets, net	433,517	429,567
Operating Lease, Right-of-Use Asset	135,190	0
Other assets	32,918	19,160
Total assets	3,426,640	3,255,385
Current liabilities:
Current portion of long-term debt and short-term debt	0	243
Accounts payable	173,791	232,983
Accrued expenses	138,278	166,954
Income taxes payable	8,521	5,811
Deferred revenue	243,053	236,508
Other current liabilities	74,226	44,829
Total current liabilities	637,869	687,328
Long-term debt	761,476	762,313
Deferred tax liabilities, net	49,929	47,121
Accrued pension and other postretirement benefit costs	97,334	101,227
Long-term operating lease liability	117,789	0
Long-term portion of environmental reserves	16,411	15,777
Other liabilities	93,536	110,838
Total liabilities	1,774,344	1,724,604
Stockholders' Equity
Common stock, $1 par value,100,000,000 shares authorized as of June 30, 2019 and December 31, 2018; 49,187,378 shares issued as of June 30, 2019 and December 31, 2018; outstanding shares were 42,715,831 as of June 30, 2019 and 42,772,417 as of December 31, 2018	49,187	49,187
Additional paid in capital	116,835	118,234
Retained earnings	2,339,703	2,191,471
Accumulated other comprehensive loss	(302,490)	(288,447)
Common treasury stock, at cost (6,471,547 shares as of June 30, 2019 and 6,414,961 shares as of December 31, 2018)	(550,939)	(539,664)
Total stockholders' equity	1,652,296	1,530,781
Total liabilities and stockholders' equity	$ 3,426,640	$ 3,255,385