Stockholder's Equity and Stock-Based Compensation - Restricted Stock Activity (Details) - Restricted Stock $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares
Number of Shares
Beginning balance (in shares) | shares	251,256
Granted (in shares) | shares	105,360
Vested (in shares) | shares	(97,780)
Forfeited (in shares) | shares	(7,500)
Ending balance (in shares) | shares	251,336
Weighted Average Grant Date Fair Value
Beginning of period (in dollars per share) | $ / shares	$ 67.45
Granted (in dollars per share) | $ / shares	81.80
Vested (in dollars per share) | $ / shares	53.49
Forfeited (in dollars per share) | $ / shares	82.81
End of period (in dollars per share) | $ / shares	$ 79.87
Aggregate Intrinsic Value (In millions) | $	$ 12.7