Goodwill and Intangible Assets (Intangible Assets) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 61,236	$ 59,116
Accumulated Amortization	17,506	11,045
Net Carrying Amount	43,730	48,071
Trademarks and patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,075	1,066
Accumulated Amortization	303	227
Net Carrying Amount	772	839
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	37,825	36,479
Accumulated Amortization	13,340	8,394
Net Carrying Amount	24,485	28,085
Covenant not-to-compete [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,056	1,042
Accumulated Amortization	628	358
Net Carrying Amount	428	684
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	21,280	20,529
Accumulated Amortization	3,235	2,066
Net Carrying Amount	$ 18,045	$ 18,463