Segment Reporting - ADJ EBITDA Reconciliations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net Income (Loss) Available to Common Stockholders, Basic	$ 225,250	$ 105,244	$ 598,495	$ 254,913
Net (loss) income attributable to noncontrolling interest	608	600	1,439	665
Preferred Stock Dividends, Income Statement Impact	14,352	14,352	43,056	43,056
Provision for income taxes	85,637	44,870	203,178	84,201
Nonoperating Income (Expense)	75,057	69,720	207,155	207,683
Depreciation and amortization	42,723	56,732	135,569	144,645
Other Nonoperating Income (Expense)	688	(5,320)	3,007	(8,929)
StockBasedCompensationExpenseEBITDA	8,371	8,312	30,379	18,955
MergerRelatedAndIntegrationCosts	13,210	35,750	52,200	119,792
Gain (Loss) on Disposition of Business			0	(8,927)
Adjusted EBITDA	465,896	330,260	1,274,478	856,054
Stock-based compensation expense	$ 9,700	$ 9,600	$ 34,446	$ 22,784
Adjusted EBITDA Margin %	8.60%	7.00%	8.00%	6.40%
Merger Related Stock Based Compensation Expense	$ 1,300	$ 1,300	$ 4,100	$ 3,800
EES
Net Income (Loss) Available to Common Stockholders, Basic	214,054	155,627	615,547	410,233
Net (loss) income attributable to noncontrolling interest	200	309	561	158
Preferred Stock Dividends, Income Statement Impact	0	0	0	0
Provision for income taxes	0	0	0	0
Nonoperating Income (Expense)	0	0	0	0
Depreciation and amortization	9,596	16,840	32,818	40,184
Other Nonoperating Income (Expense)	1,069	726	2,646	1,329
StockBasedCompensationExpenseEBITDA	2,983	1,848	7,350	4,648
MergerRelatedAndIntegrationCosts	0	0	0	0
Gain (Loss) on Disposition of Business				0
Adjusted EBITDA	$ 225,764	$ 173,898	$ 653,630	$ 453,894
Adjusted EBITDA Margin %	10.10%	8.80%	9.80%	8.10%
CSS
Net Income (Loss) Available to Common Stockholders, Basic	$ 138,747	$ 107,898	$ 373,073	$ 292,537
Net (loss) income attributable to noncontrolling interest	0	0	0	0
Preferred Stock Dividends, Income Statement Impact	0	0	0	0
Provision for income taxes	0	0	0	0
Nonoperating Income (Expense)	0	0	0	0
Depreciation and amortization	15,929	24,723	51,916	60,257
Other Nonoperating Income (Expense)	(266)	(328)	(716)	(909)
StockBasedCompensationExpenseEBITDA	1,428	752	3,747	1,818
MergerRelatedAndIntegrationCosts	0	0	0	0
Gain (Loss) on Disposition of Business				0
Adjusted EBITDA	$ 156,370	$ 133,701	$ 429,452	$ 355,521
Adjusted EBITDA Margin %	9.80%	9.00%	9.30%	8.50%
UBS
Net Income (Loss) Available to Common Stockholders, Basic	$ 180,354	$ 108,150	$ 472,119	$ 289,851
Net (loss) income attributable to noncontrolling interest	0	0	0	0
Preferred Stock Dividends, Income Statement Impact	0	0	0	0
Provision for income taxes	0	0	0	0
Nonoperating Income (Expense)	0	0	0	0
Depreciation and amortization	5,859	5,869	17,315	16,545
Other Nonoperating Income (Expense)	1,063	(22)	452	(44)
StockBasedCompensationExpenseEBITDA	1,107	633	2,670	1,517
MergerRelatedAndIntegrationCosts	0	0	0	0
Gain (Loss) on Disposition of Business				8,927
Adjusted EBITDA	$ 186,257	$ 114,674	$ 491,652	$ 299,030
Adjusted EBITDA Margin %	11.60%	9.10%	10.80%	8.40%
Corporate Segment
Net Income (Loss) Available to Common Stockholders, Basic	$ (307,905)	$ (266,431)	$ (862,244)	$ (737,708)
Net (loss) income attributable to noncontrolling interest	408	291	878	507
Preferred Stock Dividends, Income Statement Impact	14,352	14,352	43,056	43,056
Provision for income taxes	85,637	44,870	203,178	84,201
Nonoperating Income (Expense)	(75,057)	(69,720)	(207,155)	(207,683)
Depreciation and amortization	11,339	9,300	33,520	27,659
Other Nonoperating Income (Expense)	(2,554)	4,944	(5,389)	8,553
StockBasedCompensationExpenseEBITDA	2,853	5,079	16,612	10,972
MergerRelatedAndIntegrationCosts	13,210	35,750	52,200	119,792
Gain (Loss) on Disposition of Business				0
Adjusted EBITDA	$ (102,495)	$ (92,013)	$ (300,256)	$ (252,391)