Earnings Per Common Share - Additional Information (Details)	3 Months Ended
	Mar. 31, 2019 USD ($) shares
Restricted Stock Units
Earnings Per Share [Line Items]
Stock options and restricted stock units exercised not included in computations of diluted earnings per share | shares	1,848,496
Antidilutive stock options and restricted stock units | $	$ 0
Stock Options
Earnings Per Share [Line Items]
Stock options and restricted stock units exercised not included in computations of diluted earnings per share | shares	1,848,496
Antidilutive stock options and restricted stock units | $	$ 0