Goodwill And Intangible Assets (Summary Of Intangible Assets) (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	14 years 4 months 24 days
Gross Asset	$ 597,501	$ 591,952
Accumulated Amortization	204,977	183,029
Net	392,524	408,923
Finite-Lived Intangible Assets, Net	392,524	408,923	125,913
Intellectual Property Rights
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	16 years 7 months
Gross Asset	95,310	95,052
Accumulated Amortization	50,417	48,960
Net	44,893	46,092
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	13 years 10 months 24 days
Gross Asset	425,997	420,951
Accumulated Amortization	104,308	86,556
Net	321,689	334,395
Drawings
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	37 years 10 months 24 days
Gross Asset	11,149	11,149
Accumulated Amortization	10,001	9,951
Net	1,148	1,198
Other Intangible Assets
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	12 years 8 months 12 days
Gross Asset	65,045	64,800
Accumulated Amortization	40,251	37,562
Net	$ 24,794	$ 27,238