SCHEDULE I - CONDENSED FINANCIAL INFORMATION (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Jul. 31, 2015
Assets Abstract
Total assets	$ 1,082,674
Liabilities and Stockholder's Equity
Income taxes payable	1,801
Total liabilities	638,771
Total stockholders' equity	443,903	$ 878
Total liabilities and stockholders' equity	1,082,674
Parent Company [Member]
Assets Abstract
Accounts receivable from subsidiary	949
Investment in subsidiaries	430,280
Deferred income tax asset	18,423
Total assets	449,652
Liabilities and Stockholder's Equity
Accounts payable to subsidiaries	334
Income taxes payable	6
Total liabilities	340
Total stockholders' equity	449,312
Total liabilities and stockholders' equity	$ 449,652