Commitments And Contingencies (Minimum Payments Required Under Purchase Obligations) (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Purchase Obligations And Contractual Agreements [Line Items]
2021	$ 149,743
2022	108,698
2023	840,932
2024	76,253
2025	567,693
Thereafter	602,250
Total Commitment	2,345,569
Purchase Obligations [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2021	48,691
2022	10,462
2023	5,450
2024	4,095
2025	4,039
Thereafter	0
Total Commitment	72,737
transition tax commitment [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2021	7,772
2022	7,772
2023	14,573
2024	19,430
2025	24,288
Thereafter	0
Total Commitment	73,835
Operating lease commitment [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2021	6,217
2022	3,401
2023	1,190
2024	353
2025	116
Thereafter	0
Total Commitment	11,277
Senior Notes [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2021	87,063
2022	87,063
2023	819,719
2024	52,375
2025	539,250
Thereafter	602,250
Total Commitment	$ 2,187,720