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Commitments and Contingencies - Long-Term Debt and PO Commitments (Detail) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Nov. 30, 2012
Dec. 31, 2015
Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]      
Long-term Line of Credit $ 15.0    
Term Loan Debt 20.0    
Term Loan Advances Aggregate Amount 7.0    
Debt Instrument, Unused Borrowing Capacity, Amount $ 13.0    
Debt Instrument Basis Spread On Treasury Variable Rate 6.94%    
Debt Instrument, Maturity Date Nov. 01, 2016    
Debt Issuance Cost     $ 1.1
Long-term Debt, Fiscal Year Maturity [Abstract]      
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months   $ 2.3  
Purchase commitments with vendors total   $ 49.3  
Purchase commitments with vendors total maximum term, in years   1 year