Share-Based Compensation Plans - Summary of Activity Related to Stock Options Granted under Company's Incentive Plan (Details) - Employee Stock Option [Member] $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($) $ / shares shares
Total Shares
Total Shares outstanding, Beginning balance	232
Total Shares, Granted	0
Total Shares, Exercised	(4)
Total Shares outstanding, Ending balance	228
Total Shares, Exercisable	228
Weighted Average Exercise Price Per Share
Weighted Average Exercise Price per Share Outstanding, Beginning balance | $ / shares	$ 15.42
Weighted Average Exercise Price per Share, Exercised | $ / shares	20.29
Weighted Average Exercise Price per Share Outstanding, Ending balance | $ / shares	15.34
Weighted Average Exercise Price per Share, Exercisable | $ / shares	$ 15.34
Weighted Average Remaining Term and Aggregate Intrinsic Value
Weighted Average Remaining Contractual Term (Years), Outstanding	8 months 8 days
Weighted Average Remaining Contractual Term (Years), Exercisable	8 months 8 days
Aggregate Intrinsic Value, Outstanding | $	$ 17,096
Aggregate Intrinsic Value, Exercisable | $	$ 17,096