Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross carrying Amount	$ 455,089	$ 152,977
Accumulated amortization	146,535	109,468
Net carrying value	308,554	43,509
Weighted average life in years	8 years 6 months	9 years 4 months
Patents
Finite-Lived Intangible Assets [Line Items]
Gross carrying Amount	1,347	1,369
Accumulated amortization	779	649
Net carrying value	568	720
Weighted average life in years	9 years 10 months	9 years 10 months
Developed Technology Rights
Finite-Lived Intangible Assets [Line Items]
Gross carrying Amount	199,402	78,686
Accumulated amortization	78,785	62,257
Net carrying value	120,617	16,429
Weighted average life in years	6 years 7 months	7 years 5 months
Trademarks and Trade names
Finite-Lived Intangible Assets [Line Items]
Gross carrying Amount	17,152	13,092
Accumulated amortization	8,883	7,306
Net carrying value	8,269	5,786
Weighted average life in years	9 years 10 months	12 years 0 months
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying Amount	220,420	57,617
Accumulated amortization	54,452	39,146
Net carrying value	165,968	18,471
Weighted average life in years	10 years 4 months	11 years 0 months
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Gross carrying Amount	16,768	2,213
Accumulated amortization	3,636	110
Net carrying value	$ 13,132	$ 2,103
Weighted average life in years	6 years 7 months	13 years 4 months