Stock Plans and Stock Based Compensation - Narrative (Details) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended		12 Months Ended
	May 31, 2021 $ / shares shares	Mar. 31, 2022 USD ($) purchase_period plan $ / shares shares	Mar. 31, 2021 USD ($) $ / shares	Dec. 31, 2016 purchase_period	Dec. 31, 2021 shares
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of shareholder-approved, share-based compensation plans | plan		2
Granted (in shares)		4,313,500
Weighted average grant-date fair values of stock options (in dollars per share) | $ / shares		$ 2.62	$ 9.13
Unrecognized compensation cost, net of estimated forfeitures | $		$ 17.6
Unrecognized compensation cost, weighted average period for recognition		2 years 9 months
Intrinsic values of employee stock options exercised | $		$ 0.0	$ 0.3
Outstanding shares (in shares)		0
Restricted Stock
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Vesting period (years)		4 years
Awarded (in shares)		0
Outstanding shares (in shares)		0			10,312
Restricted Stock | Officer
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Awarded (in shares)		224,700
Amended and Restated 2010 Stock Incentive Plan
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Shares authorized (in shares)	23,190,000
Number of shares under award to be removed from share pool		9,713,140
Amended and Restated 2010 Stock Incentive Plan | Employee Stock
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Additional shares authorized under the plan (in shares)	11,000,000
Amended and Restated 2010 Stock Incentive Plan | Stock Options, or Stock Appreciation Rights
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Period of time options are exercisable	10 years
Shares removed from pool (in shares per share) | $ / shares	$ 1
Amended and Restated 2010 Stock Incentive Plan | Restricted Stock, RSUs, Other Stock-Based Awards, or Performance Awards
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Shares removed from pool (in shares per share) | $ / shares	$ 1.3
Price charged for award based on fair market value percentage (less than)	100.00%
2010 Plan
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Granted (in shares)		3,663,800
2010 Plan | Non-Employee Directors
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Granted (in shares)		425,000
Vesting period (years)		1 year
2010 Plan | Tranche One
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Percentage of vested shares which are exercisable under stock option		25.00%
2010 Plan | Tranche Two
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Percentage of vested shares which are exercisable under stock option		6.25%
Employee Stock Purchase Plan
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Shares issued under ESPP during period (in shares)		0
Employee Stock Purchase Plan | Employee Stock
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Shares authorized (in shares)		2,000,000
Price charged for award based on fair market value percentage (less than)		85.00%
Enrollment period		2 years
Number of purchase periods per year | purchase_period		4		2
Term of purchase periods		6 months		6 months
Shares available for future purchase under ESPP (in shares)		1,553,530