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Fair Value Measurements - Assets Categorized on Basis of Various Levels (Detail)
$ in Thousands
Mar. 31, 2016
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Money market fund deposits $ 5,092
Mutual fund investments 7
Total 5,099
Level 1 [Member]  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Money market fund deposits 5,092
Mutual fund investments 7
Total $ 5,099