Income Taxes (Components Of Company's Net Deferred Income Tax Assets And Net Deferred Income Tax Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred income tax assets:
Tax credit carryforwards	$ 4,139	$ 2,713
Net operating loss carryforwards	4,474	5,725
Reserves and allowances	12,016	5,927
Stock options and restricted stock awards	15,156	3,174
Deferred lease revenue	270	86
Senior convertible notes		1,042
Accrued liabilities	1,501	342
Property, plant and equipment		629
Total deferred income tax assets	37,556	19,638
Deferred income tax liabilities:
Intangibles	50,324	32,737
Property, plant and equipment	2,122
Total deferred income tax liabilities	52,446	32,737
Net deferred income tax assets (liabilities)	$ (14,890)	$ (13,099)