Subsequent Events - Additional Information (Details) - Common Stock - shares		9 Months Ended
	Nov. 11, 2019	Sep. 30, 2019
Subsequent Event [Line Items]
Stock repurchase program, percentage of shares repurchase		5.00%
Stock repurchase program, expire date		Sep. 24, 2019
Maximum
Subsequent Event [Line Items]
Stock repurchase program, number of shares repurchase		923,151
Scenario Forecast
Subsequent Event [Line Items]
Stock repurchase program, percentage of shares repurchase	5.00%
Stock repurchase program, expire date	May 10, 2020
Scenario Forecast | Maximum
Subsequent Event [Line Items]
Stock repurchase program, number of shares repurchase	878,835