Stock Plans and Share-Based Compensation - Roll-Forward of Activity for Restricted Stock Units (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Weighted Average Grant Date Fair Value
Accrued incremental dividend equivalent rights (in shares)	1,384
Restricted Stock Units
Units
Unvested balance at beginning of period (in units)	900,000
Granted (in units)	1,154,000
Vested (in units)	(432,000)
Forfeited (in units)	(41,000)
Unvested balance at end of period (in units)	1,581,000	900,000
Weighted Average Grant Date Fair Value
Unvested balance at beginning of period (in dollars per unit)	$ 15.83
Granted (in dollars per unit)	29.60	$ 17.84	$ 15.63
Vested (in dollars per units)	15.07
Forfeited (in dollars per unit)	27.50
Unvested balance at end of period (in dollars per unit)	$ 25.79	$ 15.83