Annual report pursuant to Section 13 and 15(d)

Accounts Receivable - Summary of Accounts Receivable (Detail)

v2.4.1.9
Accounts Receivable - Summary of Accounts Receivable (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Receivables [Abstract]    
Trade Accounts Receivable $ 87,575us-gaap_AccountsReceivableGross $ 58,224us-gaap_AccountsReceivableGross
Long-term Contract Receivables:    
Amounts Billed 0us-gaap_BilledContractReceivables 0us-gaap_BilledContractReceivables
Unbilled Recoverable Costs and Accrued Profits 1,606us-gaap_UnbilledContractsReceivable 2,858us-gaap_UnbilledContractsReceivable
Total Long-term Contract Receivables 1,606us-gaap_AccountsReceivableBilledForLongTermContractsOrPrograms 2,858us-gaap_AccountsReceivableBilledForLongTermContractsOrPrograms
Total Receivables 89,181us-gaap_AccountsReceivableGrossCurrent 61,082us-gaap_AccountsReceivableGrossCurrent
Less Allowance for Doubtful Accounts (293)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent (140)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Accounts Receivable $ 88,888us-gaap_AccountsReceivableNetCurrent $ 60,942us-gaap_AccountsReceivableNetCurrent