Annual report pursuant to Section 13 and 15(d)

Quarterly Selected Financial Data (Unaudited) (in thousands, except per share data) (Details)

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Quarterly Selected Financial Data (Unaudited) (in thousands, except per share data) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]                      
Total revenue $ 1,480,618 $ 1,913,851 $ 1,664,277 $ 1,403,630 $ 1,381,193 $ 1,858,356 $ 1,522,174 $ 1,293,403 $ 6,462,376 $ 6,055,126 $ 5,396,175
Operating income 199,376 511,724 308,681 158,296 209,580 550,276 292,152 167,053 1,178,077 1,219,061 1,048,819
Net income $ 121,297 $ 450,584 $ 240,190 $ 118,157 $ 154,634 $ 470,378 $ 226,676 $ 103,155 $ 930,228 $ 954,843 $ 759,872
Earnings per share                      
Basic (in dollars per share) $ 0.57 $ 2.10 $ 1.11 $ 0.54 $ 0.70 $ 2.12 $ 1.02 $ 0.45 $ 4.33 $ 4.28 $ 3.33
Diluted (in dollars per share) $ 0.56 $ 2.09 $ 1.11 $ 0.54 $ 0.70 $ 2.11 $ 1.01 $ 0.45 $ 4.30 $ 4.25 $ 3.31