Fair Value of Intangible Assets (Detail) (JADAK, USD $) In Thousands, unless otherwise specified	1 Months Ended
	Mar. 14, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 40,512
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	24,136
Amortization Period of intangible assets	20 years
Developed Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	11,129
Amortization Period of intangible assets	10 years
Trademarks and Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	2,129
Amortization Period of intangible assets	10 years
Backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	1,631
Amortization Period of intangible assets	1 year
Non-compete Covenant
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 1,487
Amortization Period of intangible assets	5 years