Operating Segments and Related Information Operating Segments and related information (Details 3) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Business Unit Reporting, Revenue Reconciling Item [Line Items]
Unallocated corporate expense	$ (27,812)	$ (25,491)	$ (93,082)	$ (83,416)
Amortization of purchased Intangible Assets	(11,900)	(15,500)	(35,600)	(42,500)
Restructuring Costs			28,779	5,776
Other	(293)	(2,166)
Consolidated earnings from operations	86,577	74,388	214,882	219,207
Loss on debt extinguishment	(9,126)	0	(9,126)	0
Other Nonoperating Expense	2,470	7,262	20,743	19,201
Consolidated earnings before income taxes	79,921	67,126	185,013	200,006
Acquisition-related Costs [Member]
Business Unit Reporting, Revenue Reconciling Item [Line Items]
Amortization of purchased Intangible Assets	(11,872)	(15,477)	(35,522)	(42,451)
Total Segments [Member]
Business Unit Reporting, Revenue Reconciling Item [Line Items]
Consolidated segment operating income	126,554	117,522	372,265	350,850
Consolidated earnings from operations	$ 126,554	$ 117,522	$ 372,265	$ 350,850

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Unallocated corpoate expense

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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