Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses and Other Long-Term Liabilities- Accounts Payable and Other Accrued Expenses (Detail)

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Accrued Expenses and Other Long-Term Liabilities- Accounts Payable and Other Accrued Expenses (Detail) - USD ($)
$ in Thousands
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Legal $ 1,748   $ 1,253
Other 2,564   2,002
Total $ 24,995   $ 23,871
National Holdings Corporation [Member]      
Legal   $ 766  
Audit   287  
Telecommunications   187  
Data Services   348  
Regulatory   1,061  
Settlements   1,131  
Deferred rent   630  
Contingent consideration payable   121  
Other   2,592  
Total   $ 7,123