Subsequent Events - Additional Information (Details) - $ / shares								3 Months Ended		6 Months Ended
	Jul. 07, 2020	Apr. 06, 2020	Feb. 03, 2020	Oct. 14, 2019	Jul. 09, 2019	Apr. 03, 2019	Feb. 04, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Subsequent Events [Abstract]
Dividends payable, date declared	Jul. 07, 2020	Apr. 06, 2020	Feb. 03, 2020	Oct. 14, 2019	Jul. 09, 2019	Apr. 03, 2019	Feb. 04, 2019
Dividends declared per share (in dollars per share)	$ 0.48							$ 0.48	$ 0.48	$ 0.96	$ 0.96
Dividends payable, date to be paid	Jul. 24, 2020	Apr. 24, 2020	Feb. 21, 2020	Nov. 01, 2019	Jul. 26, 2019	Apr. 22, 2019	Feb. 22, 2019
Dividends payable, date of record	Jul. 17, 2020	Apr. 17, 2020	Feb. 14, 2020	Oct. 25, 2019	Jul. 19, 2019	Apr. 15, 2019	Feb. 15, 2019