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Subsequent Events (Notes)	12 Months Ended
Subsequent Events (Notes)	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent Events We announced on February 12, 2020 that our Board had declared a common stock cash dividend of $0.255 per share, payable on March 16, 2020 to holders of record as of the close of business on March 2, 2020.