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Selected Account Information - Schedule of Selling, General and Administrative Expenses (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Selected Account Information        
Taxes and permits $ 2,005 $ 1,840 $ 4,171 $ 4,129
Advertising and marketing 1,837 1,355 3,802 3,012
Insurance 1,368 952 2,627 1,887
Supplies and services 1,315 1,142 2,683 2,288
Legal 1,009 709 1,386 1,412
Rent 957 750 1,897 1,440
Charge card fees 784 617 1,671 1,187
Utilities 738 656 1,433 1,326
Accounting and professional fees 670 560 1,556 1,057
Security 632 512 1,270 1,053
Repairs and maintenance 521 533 1,091 999
Other 1,012 983 2,073 2,012
Selling, general and administrative $ 12,848 $ 10,609 $ 25,660 $ 21,802