Goodwill And Intangible Assets (Changes To Goodwill) (Detail) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Goodwill [Line Items]
Balance at beginning of period	$ 1,249,316,000	$ 813,792,000
Additions	0	442,170,000
Disposals	(813,000)	(2,834,000)
Adjustments to purchase price allocations	(2,589,000)	0
Currency translation and other	(22,261,000)	(3,812,000)
Balance at end of period	1,223,653,000	1,249,316,000
MEI Conlux Holdings [Member]
Goodwill [Line Items]
Proceeds Received Related To Adjustment Of Working Capital	6,100,000
Balance at beginning of period	439,000
Adjustments to purchase price allocations	$ 4,000,000