Business Combinations - Summary of Estimated Fair Value of Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013 Hart Systems LLC [Member]	Jul. 13, 2012 Laserband LLC [Member]
Business Acquisition [Line Items]
Current assets	$ 2,600	$ 7,017
Property and equipment	11,134	46
Other assets		17
Goodwill	60,858	24,353
Other intangibles	37,200	29,560
Total assets acquired	111,792	60,993
Current liabilities	2,285	1,119
Long term liabilities	13,838
Net assets acquired	$ 95,669	$ 59,874