XML 46 R35.htm IDEA: XBRL DOCUMENT v3.4.0.3
Accounts Receivable - Summary of Accounts Receivable (Detail) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Contract receivables $ 73,898 $ 86,129
Allowance for doubtful accounts (1,190) (1,151)
Accounts receivable, Total 84,828 97,778
Trade Accounts Receivable [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Trade receivables $ 12,120 $ 12,800