Goodwill And Intangible Assets (Changes To Goodwill) (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
Jun. 30, 2013	Dec. 31, 2012
Disclosure Goodwill And Intangible Assets Changes To Goodwill [Abstract]
Balance at beginning of period	$ 813,792	$ 820,824
Disposals	0	(13,966)
Currency translation	(11,345)	6,934
Balance at end of period	$ 802,447	$ 813,792

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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- Definition

The increase (decrease) in the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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