Intangible Assets Amortization Period (Detail)	3 Months Ended
	Mar. 31, 2014
Customer Relationships | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period	7 years
Customer Relationships | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period	20 years
Developed Technology | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period	7 years
Developed Technology | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period	20 years
Backlog | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period	0 years
Backlog | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization Period	2 years