Common Stock - Additional Information (Details) - USD ($)			3 Months Ended								12 Months Ended
	Jan. 29, 2020	Jan. 02, 2020	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
Class of Stock [Line Items]
Dividends per share (in dollars per share)			$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.11	$ 0.11	$ 0.11	$ 0.11
Dividends paid (in dollars per share)											$ 0.48	$ 0.44	$ 0.40
Common stock repurchased (in shares)											40,000
Subsequent Event
Class of Stock [Line Items]
Dividends per share (in dollars per share)		$ 0.13
Dividends paid (in dollars per share)	$ 0.13
Stock repurchase program, authorized amount		$ 30,000,000