Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 2)

v3.3.1.900
Fair Value Measurements (Details 2) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2015
Oct. 31, 2015
Assets and Liabilities that are Measured at Fair Value on a Non-Recurring Basis    
Tradename impairment charge $ 90,100 $ 90,100
Non-Recurring | Level 3    
Assets and Liabilities that are Measured at Fair Value on a Non-Recurring Basis    
Tradename impairment charge $ 90,100