Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity Schedule of Common Dividends Declared (Details)

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Stockholders' Equity Schedule of Common Dividends Declared (Details) - Common Stock [Member] - $ / shares
1 Months Ended 2 Months Ended 3 Months Ended
Jul. 31, 2018
Sep. 30, 2018
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Class of Stock [Line Items]                          
Declaration Date Jul. 13, 2018 Dec. 18, 2018 Dec. 17, 2019 Sep. 19, 2019 Jun. 19, 2019 Mar. 19, 2019 Sep. 20, 2018 Jun. 19, 2018 Mar. 20, 2018 Dec. 14, 2017 Sep. 14, 2017 Jun. 15, 2017 Mar. 14, 2017
Record Date Jul. 25, 2018 Dec. 31, 2018 Dec. 31, 2019 Sep. 30, 2019 Jul. 01, 2019 Mar. 29, 2019 Oct. 01, 2018 Jun. 29, 2018 Apr. 02, 2018 Dec. 26, 2017 Sep. 29, 2017 Jun. 30, 2017 Mar. 31, 2017
Payment Date Jul. 30, 2018 Jan. 28, 2019 Jan. 24, 2020 Oct. 28, 2019 Jul. 29, 2019 Apr. 29, 2019 Oct. 29, 2018 Jul. 27, 2018 Apr. 27, 2018 Dec. 29, 2017 Oct. 27, 2017 Jul. 27, 2017 Apr. 27, 2017
Dividends declared per common share (in usd per share) $ 0.158370 $ 0.470000 $ 0.400000 $ 0.400000 $ 0.400000 $ 0.470000 $ 0.311630 $ 0.470000 $ 0.470000 $ 0.470000 $ 0.520000 $ 0.520000 $ 0.500000