Share-Based Compensation - Summary of Stock Options Outstanding (Details) shares in Thousands	3 Months Ended
	Mar. 31, 2021 $ / shares shares
Number of Shares
Beginning of period (in shares) | shares	2,098
Granted (in shares) | shares	207
Exercised (in shares) | shares	(60)
Forfeited (in shares) | shares	(1)
Expired (in shares) | shares	(1)
End of period (in shares) | shares	2,243
Weighted Average Exercise Price
Beginning of period (in dollars per share) | $ / shares	$ 33.35
Granted (in dollars per share) | $ / shares	28.45
Exercised (in dollars per share) | $ / shares	24.70
Forfeited (in dollars per share) | $ / shares	39.38
Expired (in dollars per share) | $ / shares	26.75
End of period (in dollars per share) | $ / shares	$ 33.13