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Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
$ in Millions
Apr. 20, 2018
Mar. 31, 2018
Accrued Expenses    
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]    
Derivative liability   $ 2.0
Interest Rate Swaps    
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]    
Derivative notional amount   125.0
Subsequent Event    
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]    
Payment for interest rate swap $ 0.2  
Accounting Standards Update 2016-16    
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]    
Prepaid taxes written off to accumulated deficit   $ 2.6