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	$ 40,250
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	23,570
Amortization Period of intangible assets	20 years
Developed Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	10,910
Amortization Period of intangible assets	10 years
Trademarks and Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	2,130
Amortization Period of intangible assets	10 years
Backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	1,810
Amortization Period of intangible assets	1 year
Non-compete Covenant
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 1,830
Amortization Period of intangible assets	5 years