Income Taxes Deferred Tax Assets and Liabilities (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]
Accounts receivable reserves	$ 91,773,000	$ 120,983,000
Net operating loss (“NOL”) carryforwards	81,530,000	82,035,000
Accrued liabilities	78,331,000	88,073,000
Other	47,421,000	28,414,000
Gross deferred tax assets, net of valuation allowances	299,055,000	319,505,000
Valuation allowances	(21,037,000)	(20,502,000)
Gross deferred tax assets, net of valuation allowances	278,018,000	299,003,000
Amortization of intangibles	606,933,000	568,849,000
Contingent convertible debentures interest	353,397,000	322,035,000
Fixed assets and depreciation methods	55,135,000	48,034,000
Subsidiary stock basis	12,271,000	12,203,000
Current and noncurrent assets	10,702,000	15,149,000
Other	18,054,000	18,146,000
Gross deferred tax liabilities	1,056,492,000	984,416,000
deferred tax benefit, ferderal, state and foreign	82,000,000
deferred federal tax asset, net	29,000,000
deferred state tax asset, net	50,000,000
deferred foreign tax asset, net	$ 3,000,000