Debt (Schedule of Cash and Non-Cash Interest Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Debt Instrument [Line Items]
Cash Interest	$ 86,961	$ 89,199	$ 253,528	$ 269,839
Non-cash Interest	$ 11,528	11,820	$ 34,582	35,436
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	4.54%		4.54%
Cash Interest	$ 4,896	996	$ 10,778	4,717
2018 Term Loan [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	2.328%		2.328%
Cash Interest	$ 13,038	11,156	$ 35,565	33,220
Non-cash Interest	$ 11,440	11,441	$ 34,318	34,314
Blended rate			2.328%
Accruing interest rate	4.87%		4.87%
2013 Tower Securities [Member]
Debt Instrument [Line Items]
Cash Interest		5,396		16,188
2014 Tower Securities [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	3.869%		3.869%
Cash Interest	$ 6,046	6,046	$ 18,138	18,138
2017-1C Tower Securities [Member]
Debt Instrument [Line Items]
Cash Interest				9,201
2018-1C Tower Securities [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	3.448%		3.448%
Cash Interest	$ 5,570	5,570	$ 16,711	16,711
2019-1C Tower Securities [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	2.836%		2.836%
Cash Interest	$ 8,357	8,357	$ 25,072	25,072
2020-1C Tower Securities [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	1.884%		1.884%
Cash Interest	$ 3,598	3,598	$ 10,793	10,793
2020-2C Tower Securities [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	2.328%		2.328%
Cash Interest	$ 3,540	3,540	$ 10,619	10,619
2021-1C Tower Securities [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	1.631%		1.631%
Cash Interest	$ 4,870	4,850	$ 14,567	7,401
2021-2C Tower Securities [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	1.84%		1.84%
Cash Interest	$ 4,196		$ 12,587
2021-3C Tower Securities [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	2.593%		2.593%
Cash Interest	$ 5,873		$ 17,619
2016 Senior Notes [Member]
Debt Instrument [Line Items]
Cash Interest		13,406		40,219
Non-cash Interest		293		869
2017 Senior Notes [Member]
Debt Instrument [Line Items]
Cash Interest				2,333
2020 Senior Notes [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	3.875%		3.875%
Cash Interest	$ 14,531	14,531	$ 43,594	43,594
Non-cash Interest	$ 88	86	$ 264	253
2021 Senior Notes [Member]
Debt Instrument [Line Items]
Interest Rates as of March 31, 2022	3.125%		3.125%
Cash Interest	$ 11,719	11,719	$ 35,156	31,510
Other [Member]
Debt Instrument [Line Items]
Cash Interest	727	$ 34	2,329	$ 123
Interest Rate Swap [Member] | 2018 Term Loan [Member]
Debt Instrument [Line Items]
Notional amount	$ 1,950,000		$ 1,950,000
Derivative fixed interest rate	1.874%		1.874%
Interest Rate Swap [Member] | London Interbank Offered Rate (LIBOR) [Member] | 2018 Term Loan [Member]
Debt Instrument [Line Items]
Derivative basis spread on variable interest rate	1.75%		1.75%