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Debt - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
1 Months Ended 3 Months Ended 1 Months Ended 3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Jun. 30, 2013
Equipment Line of Credit [Member]
Jun. 30, 2012
Equipment Line of Credit [Member]
Jun. 30, 2011
Equipment Line of Credit [Member]
Apr. 30, 2010
Equipment Line of Credit [Member]
Mar. 31, 2014
Equipment Line of Credit [Member]
May 30, 2009
Equipment Line of Credit [Member]
May 31, 2013
Software Finance Agreement [Member]
May 31, 2012
Software Finance Agreement [Member]
Mar. 31, 2014
Software Finance Agreement [Member]
Dec. 31, 2013
Software Finance Agreement [Member]
Debt Instrument [Line Items]                        
Equipment line of credit               $ 2.0        
Increase in available equipment line of credit borrowings     3.0 3.0 4.0 4.0            
Initial drawdown of loan due in equal monthly payments             36 equal months          
Annual interest rate             3.75%       5.40%  
Last payment date of loan             Jun. 01, 2016          
Outstanding balance under the Software Finance Agreement 2.7 3.3                 0 0.9
Available borrowings under the Loan for eligible equipment purchases 1.6                      
Purchase of software license                   1.8    
Frequency of payments                     12 equal quarterly payments  
Agreement expiration date                     Apr. 01, 2015  
Increased financed amount                 $ 0.6