Nature of Business and Summary of Significant Accounting Policies -Effect of Adopting Topic 842 (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current assets	$ 323,016	$ 303,543	$ 258,908	$ 274,857
Property, plant and equipment, net	14,503,084	12,152,597	10,732,909	11,026,020
Operating lease right-of-use assets	1,475,057	1,475,367	1,468,762
Intangible assets, net	2,170,945	2,102,389	2,310,091	2,333,296	$ 2,384,972
Other assets	776,047	580,788	469,784	533,252
Current portion of operating lease liabilities	154,207	145,606	144,405
Current portion of finance lease liabilities	137,683	75,239	70,795
Current portion of finance lease liabilities				77,844
Other current liabilities	354,368	153,938	120,540	126,995
Operating lease liabilities, less current portion	1,308,627	1,315,656	1,312,262
Finance lease liabilities, less current portion	1,784,816	1,430,882	1,165,188
Finance lease liabilities, less current portion				1,441,077
Other liabilities	948,999	621,725	541,491	629,763
Retained earnings	$ 1,760,302	$ 1,391,425	883,975	$ 889,948
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current assets			(15,949)
Property, plant and equipment, net			(293,111)
Operating lease right-of-use assets			1,468,762
Intangible assets, net			(23,205)
Other assets			(63,468)
Current portion of operating lease liabilities			144,405
Current portion of finance lease liabilities			70,795
Current portion of finance lease liabilities			(77,844)
Other current liabilities			(6,455)
Operating lease liabilities, less current portion			1,312,262
Finance lease liabilities, less current portion			1,165,188
Finance lease liabilities, less current portion			(1,441,077)
Other liabilities			(88,272)
Retained earnings			$ (5,973)