Long-Lived Assets (Details ) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 30, 2013
Schedule of Goodwill
Goodwill	$ 233,365
Adjustments related to prior acquisitions	(134)
Effects of changes in foreign currency exchange rates	(5,685)
Ending balance	$ 227,546

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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+ Details