Leases - Schedule of ROU Assets and Lease Liabilities (Detail) $ in Thousands	Sep. 30, 2019 USD ($)
Assets:
Operating	$ 51,284
Financing	10,346
Total ROU assets	61,630
Liabilities:
Operating, Current	7,273
Financing, Current	2,952
Operating, Noncurrent	45,499
Financing, Noncurrent	9,544
Total lease liabilities	$ 65,268