Operating Segments and Related Information Operating Segments and related information (Details 3) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Business Unit Reporting, Revenue Reconciling Item [Line Items]
Unallocated corporate expense	$ (29,026)	$ (29,635)	$ (65,270)	$ (57,925)
Amortization of purchased Intangible Assets	(11,800)	(21,100)	(23,700)	(27,000)
Restructuring Costs			28,486	3,610
Other	(7,702)	(3,001)
Consolidated earnings from operations	99,810	63,737	128,305	144,819
Other Nonoperating Expense	(17,916)	(5,614)	(23,213)	(11,939)
Consolidated earnings before income taxes	81,894	58,123	105,092	132,880
Acquisition-related Costs [Member]
Business Unit Reporting, Revenue Reconciling Item [Line Items]
Amortization of purchased Intangible Assets	(11,754)	(21,046)	(23,650)	(26,974)
Total Segments [Member]
Business Unit Reporting, Revenue Reconciling Item [Line Items]
Consolidated segment operating income	148,292	117,419	245,711	233,328
Consolidated earnings from operations	$ 148,292	$ 117,419	$ 245,711	$ 233,328