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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2014
Stockholders Equity And Equity Compensation Plans [Line Items]
Remaining number of shares available for repurchase	2,100,000		2,100,000
Repurchase of common stock for employee tax withholdings, shares	2,000	2,000	168,000	125,000
Repurchase of common stock for tax withholdings, value	$ 100	$ 100	$ 9,400	$ 7,900
Cash dividends declared per common share	$ 0.28	$ 0.265
Cash dividend	$ 8,900	$ 8,500	$ 17,700	17,100
Stock warrants term					10 years
Stock warrants, exercise price					$ 26.68
Performance based awards granted to executive management and certain key employees shares			134,000
Vesting maturity date			first quarter of 2025
Vesting period			2 years
Stock-based compensation expense	$ 7,600	$ 6,500	$ 14,056	$ 12,117
Market-based Awards
Stockholders Equity And Equity Compensation Plans [Line Items]
Awards vested			45,000
Restricted common stock
Stockholders Equity And Equity Compensation Plans [Line Items]
Awards vested	34,000		472,000
Restricted common stock | Minimum
Stockholders Equity And Equity Compensation Plans [Line Items]
Vesting period			2 years
Restricted common stock | Maximum
Stockholders Equity And Equity Compensation Plans [Line Items]
Vesting period			3 years
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		626,000
Total amount paid		$ 21,600		$ 37,600
Weighted-average price per share		$ 59.88		$ 59.99