Long-Term Obligations (Tables)

3 Months Ended

Mar. 31, 2012

Long-Term Obligations [Abstract]

Schedule Of Long-Term Obligations

	March 31, 2012			December 31, 2011
	(In thousands)
Series A convertible debentures to mature in 2037, bearing fixed interest of 2.75%, with a put/call option in 2012	$	275,000		$	275,000
Unamortized discount		(6,395	)		(9,059	)
Series B convertible debentures to mature in 2037, bearing fixed interest of 2.75%, with a put/call option in 2014		275,000			275,000
Unamortized discount		(28,817	)		(31,332	)
Eurodollar loans under five-year revolving credit agreement bearing annual interest equal to the British Bankers Association LIBOR Rate ("BBA LIBOR") plus an applicable margin based on the Company's consolidated leverage ratio (consolidated funded indebtedness to consolidated EBITDA)		170,000			100,000
Other long-term obligations		1,736			1,710
Contingent consideration		21,595			21,595
Unsecured acquisition obligations, net of imputed interest, payable in various installments through 2015		18,855			20,996
Total long-term obligations		726,974			653,910
Less: current installments		463,536			397,132
Long-term obligations, excluding current installments	$	263,438		$	256,778

Schedule Of Debt And Equity Components For Convertible Debentures

	March 31, 2012						December 31, 2011
	Series A			Series B			Series A			Series B
Principal amount of convertible debentures	$	275,000		$	275,000		$	275,000		$	275,000
Unamortized discount		(6,395	)		(28,817	)		(9,059	)		(31,332	)
Net carrying amount		268,605			246,183			265,941			243,668
Additional paid-in capital		29,065			41,238			29,065			41,238

Schedule Of Interest Expense

	March 31, 2012				March 31, 2011
	Series A		Series B		Series A		Series B
Contractual coupon interest	$	1,891	$	1,891	$	1,891	$	1,891
Amortization of discount on convertible debentures		2,664		2,515		2,488		2,341
Interest expense	$	4,555	$	4,406	$	4,379	$	4,232