Stockholders' Equity and Equity Compensation Plans (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2014
Stockholders Equity And Equity Compensation Plans [Line Items]
Remaining number of shares available for repurchase	3,000,000.0		3,000,000.0
Repurchase of common stock for employee tax withholdings, shares	2,000	3,000	125,000	113,000
Repurchase of common stock for tax withholdings, value	$ 100	$ 100	$ 7,900	$ 5,300
Cash dividends declared per common share	$ 0.265	$ 0.25
Cash dividend	$ 8,500	$ 8,200	$ 17,100	16,400
Stock warrants term					10 years
Stock warrants, exercise price					$ 26.68
Performance based awards granted to executive management and certain key employees shares			121,000
Vesting maturity date			first quarter of 2024
Vesting period			2 years
Stock-based compensation expense	$ 6,500	$ 5,000	$ 12,117	$ 10,417
Market-based Awards
Stockholders Equity And Equity Compensation Plans [Line Items]
Awards vested			40,000
Restricted common stock
Stockholders Equity And Equity Compensation Plans [Line Items]
Vesting period			3 years
Awards vested	44,000		383,000
Comcast
Stockholders Equity And Equity Compensation Plans [Line Items]
Issuance of stock warrants					2,900,000
Stock warrants issued	1,000,000.0		1,000,000.0
Stock warrants vested			0
SEC Rule 10b5-1 Plan
Stockholders Equity And Equity Compensation Plans [Line Items]
Repurchase of common stock, shares	360,000	153,000	626,000	295,000
Total amount paid	$ 21,600	$ 7,000	$ 37,600	$ 13,500
Weighted-average price per share	$ 59.88	$ 45.56	$ 59.99	$ 45.74