Stock-Based Compensation Plans - Summary of Nonvested TSRs (Details) - Total Shareholder Return Awards (TSRs)	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Number of Shares at Expected Attainment
Nonvested, beginning balance (in shares) | shares	718,931
Granted (in shares) | shares	436,674
Forfeited (in shares) | shares	(93,314)
Nonvested, ending balance (in shares) | shares	1,062,291
Weighted Average Grant Date Fair Value
Nonvested, beginning balance (in dollars per share) | $ / shares	$ 29.25
Granted (in dollars per share) | $ / shares	47.90
Forfeited (in dollars per share) | $ / shares	35.37
Nonvested, ending balance (in dollars per share) | $ / shares	$ 35.77