CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive (Loss) Earnings
Balance at Dec. 31, 2017	$ 4,383,180	$ 256,992	$ 942,485	$ (5,077,039)	$ 8,455,501	$ (194,759)
Net earnings	271,393	0	0	0	271,393	0
Dividends paid	(142,322)	0	0	0	(142,322)	0
Separation of Apergy	(906,815)	0	0	0	(939,743)	32,928
Common stock issued for the exercise of share-based awards	(21,202)	402	(21,604)	0	0	0
Share-based compensation expense	11,147	0	11,147	0	0	0
Common stock acquired, including accelerated share repurchase program	(744,977)	0	(140,000)	(604,977)	0	0
Other comprehensive loss, net of tax	(5,092)	0	0	0	0	(5,092)
Other, net	(4,896)	0	(4,896)	0	0	0
Balance at Jun. 30, 2018	2,840,591	257,394	787,132	(5,682,016)	7,657,860	(179,779)
Balance at Mar. 31, 2018	4,445,622	257,282	934,596	(5,122,016)	8,527,276	(151,516)
Net earnings	139,959	0	0	0	139,959	0
Dividends paid	(69,632)	0	0	0	(69,632)	0
Separation of Apergy	(906,815)	0	0	0	(939,743)	32,928
Common stock issued for the exercise of share-based awards	(6,263)	112	(6,375)	0	0	0
Share-based compensation expense	3,833	0	3,833	0	0	0
Common stock acquired, including accelerated share repurchase program	(700,000)	0	(140,000)	(560,000)	0	0
Other comprehensive loss, net of tax	(61,191)	0	0	0	0	(61,191)
Other, net	(4,922)	0	(4,922)	0	0	0
Balance at Jun. 30, 2018	2,840,591	257,394	787,132	(5,682,016)	7,657,860	(179,779)
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2018-02 [Member]	0	0	0	0	12,856	(12,856)
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2014-09 [Member]	175	0	0	0	175	0
Balance at Dec. 31, 2018	2,768,666	257,822	886,016	(5,947,562)	7,815,486	(243,096)
Net earnings	303,790	0	0	0	303,790	0
Dividends paid	(139,730)	0	0	0	(139,730)	0
Common stock issued for the exercise of share-based awards	(21,209)	493	(21,702)	0	0	0
Share-based compensation expense	16,617	0	16,617	0	0	0
Other comprehensive loss, net of tax	34,983	0	0	0	0	34,983
Other, net	(7,846)	0	(7,897)	0	51	0
Balance at Jun. 30, 2019	2,955,271	258,315	873,034	(5,947,562)	7,979,597	(208,113)
Balance at Mar. 31, 2019	2,837,453	258,214	866,365	(5,947,562)	7,851,382	(190,946)
Net earnings	198,085	0	0	0	198,085	0
Dividends paid	(69,921)	0	0	0	(69,921)	0
Common stock issued for the exercise of share-based awards	(1,601)	101	(1,702)	0	0	0
Share-based compensation expense	8,435	0	8,435	0	0	0
Other comprehensive loss, net of tax	(17,167)	0	0	0	0	(17,167)
Other, net	(13)	0	(64)	0	51	0
Balance at Jun. 30, 2019	$ 2,955,271	$ 258,315	$ 873,034	$ (5,947,562)	$ 7,979,597	$ (208,113)