Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Schedule of Contractual Maturities Available-for-Sale Debt Securities (Detail)

v3.3.1.900
Fair Value Measurements - Schedule of Contractual Maturities Available-for-Sale Debt Securities (Detail)
$ in Thousands
Jan. 31, 2016
USD ($)
Fair Value Disclosures [Abstract]  
Maturity of one year or less $ 1,504
Maturity between one and five years 10,764
Total $ 12,268