Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Summary of Total Accounts and Notes Receivable (Detail)

v2.4.1.9
Summary of Significant Accounting Policies - Summary of Total Accounts and Notes Receivable (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Accounting Policies [Abstract]    
Trade $ 281,640us-gaap_AccountsReceivableGrossCurrent $ 270,498us-gaap_AccountsReceivableGrossCurrent
Notes receivable 500us-gaap_NotesAndLoansReceivableNetCurrent 244us-gaap_NotesAndLoansReceivableNetCurrent
Allowance for doubtful accounts (11,188)us-gaap_AllowanceForNotesAndLoansReceivableCurrent (12,853)us-gaap_AllowanceForNotesAndLoansReceivableCurrent
Total accounts and notes receivable, net of allowance for bad debt $ 270,952us-gaap_AccountsNotesAndLoansReceivableNetCurrent $ 257,889us-gaap_AccountsNotesAndLoansReceivableNetCurrent