XML 106 R93.htm IDEA: XBRL DOCUMENT v3.20.4
Employee Benefit Plans - Benefit Payments and Contributions (Details)
Dec. 31, 2020
USD ($)
Estimated Future Employer Contributions [Abstract]  
Estimated future employer contributions in next fiscal year $ 5,200,000
Nonqualified Plan [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]  
Expected Future Benefit Payments by Fiscal Year [Abstract]  
Next 12 Months 4,958,000
+2 Years 5,021,000
+3 Years 5,406,000
+4 Years 7,090,000
+5 Years 1,758,000
Thereafter 22,248,000
United States | Qualified Plan [Member] | Pension Plan [Member]  
Expected Future Benefit Payments by Fiscal Year [Abstract]  
Next 12 Months 36,044,000
+2 Years 37,184,000
+3 Years 34,679,000
+4 Years 35,863,000
+5 Years 33,816,000
Thereafter 146,262,000
Foreign Plan [Member] | Qualified Plan [Member] | Pension Plan [Member]  
Expected Future Benefit Payments by Fiscal Year [Abstract]  
Next 12 Months 9,999,000
+2 Years 9,944,000
+3 Years 11,333,000
+4 Years 13,170,000
+5 Years 11,375,000
Thereafter $ 69,768,000