Income Taxes Income Taxes (Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards	$ 59,806	$ 11,559
Deferred Tax Assets, Tax Credit Carryforwards	16,281	18,341
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	14,759	12,156
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts	2,624	1,169
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	5,631	4,308
Deferred Tax Assets, Property, Plant and Equipment	2,195	0
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Impairment Losses	74	74
Deferred Tax Assets, Deferred Income	2,361	3,232
Deferred Tax Assets, State Taxes	1,758	522
Deferred Tax Assets, Other	9,227	7,458
Deferred Tax Assets, Gross	114,716	58,819
Deferred Tax Assets, Valuation Allowance	(12,028)	(14,242)
Deferred Tax Assets, Net of Valuation Allowance	102,688	44,577
Deferred Tax Liabilities, Property, Plant and Equipment	0	(5,457)
Deferred Tax Liabilities, Intangible Assets	(98,830)	(41,351)
Deferred Tax Liabilities, Prepaid Insurance	(246)	(482)
Deferred Tax Liability, Convertible Debt	(36,592)	(31,091)
Deferred Tax Liabilities, Foreign Other	(2,088)	(3,330)
Deferred Tax Liabilities, Net	(137,756)	(81,711)
Deferred Tax Assets, Net	$ (35,068)	$ (37,134)