Short-term Borrowings and Long-Term Debt - Maturities of the Company's long-term debt (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Fiscal Year
Thereafter	$ 1,800,000
Total	1,800,000	$ 1,800,000
Plus: capital lease obligations	2,123	2,870
Less: unamortized debt issuance costs and premium, net	18,113
Less: current portion	716	755
Total long-term debt	$ 1,783,294	$ 1,786,839