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Summary Of Balance Sheet Information Related To Operating Leases (Detail) $ in Thousands	Sep. 30, 2019 USD ($)
Operating Leases
ROU assets	$ 225,366
Current portion of long-term obligations	66,403
Operating lease liabilities	157,503
Total operating lease liabilities	$ 223,906
Weighted Average Remaining Lease Term (in years)
Operating leases	4 years
Weighted Average Discount Rate
Operating leases	4.54%

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