CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 103,881,000	$ 92,461,000
Finite-Lived Intangible Assets, Accumulated Amortization	183,928,000	173,635,000
Other Finite-Lived Intangible Assets, Accumulated Amortization	$ 8,273,000	$ 7,565,000
SHAREHOLDERS' EQUITY:
Preferred Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, shares authorized ( in shares)	5,000,000	5,000,000
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized (in shares)	200,000,000	200,000,000
Common Stock, shares issued (in shares)	49,115,444	49,065,924
Common Stock, shares outstanding (in shares)	47,749,796	47,700,276
Treasury Stock
Treasury stock, shares	1,365,648	1,365,648
Shareholders' Equity A Nonconvertible Preferred Stock
Preferred Stock, liquidation value per share (in dollars per share)	$ 7.50
Series A Nonconvertible Preferred Stock [Member]
Shareholders' Equity A Nonconvertible Preferred Stock
Preferred Stock, shares issued (in shares)	200,000	200,000
Preferred Stock, shares outstanding (in shares)	200,000	200,000
Preferred Stock, liquidation value per share (in dollars per share)	$ 7.50	$ 7.50
Preferred Stock, liquidation value	$ 1,500	$ 1,500