Supplemental Consolidated Balance Sheet Information (Components Of Other Non-Current Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Supplemental Consolidated Balance Sheet Information [Abstract]
Deferred contingent acquisition liabilities	$ 26,282	$ 8,038
Deferred rent - long-term	9,281	10,642
Other non-current liabilities	3,325	7,336
Total other non-current liabilities	$ 38,888	$ 26,016

Other Liabilities Relating To Non-current

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer.

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-Publisher FASB

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For a classified balance sheet, the cumulative difference between the rental income or payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, more than one year after the balance sheet date.

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-Section 25

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Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer).

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