XML 22 R40.htm IDEA: XBRL DOCUMENT v3.19.3
Basis of Presentation - Additional Information (Detail)
$ in Thousands
Sep. 30, 2019
USD ($)
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]  
Operating lease right-of-use asset $ 63,526
Operating lease liabilities 67,901
Accounting Standards Update 2016-02 [Member]  
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]  
Operating lease right-of-use asset 66,700
Operating lease liabilities $ 71,100