Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Income Tax Provision Attributable to Income from Continuing Operations (Details)

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Income Taxes - Schedule of Income Tax Provision Attributable to Income from Continuing Operations (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Income Tax Disclosure [Abstract]                      
Statutory federal income tax rate                 35.00% 35.00% 35.00%
Tax at the statutory federal rate                 $ 4,382 $ 9,335 $ 8,117
Increase (decrease) resulting from:                      
State income taxes, net of federal benefit                 457 1,279 183
Permanent and other reconciling items, net                 773 280 3,083
Other                 (91) 11 0
Total provision for income taxes $ (1,898) $ 3,392 $ 6,102 $ (2,075) $ (629) $ 6,644 $ 1,127 $ 3,763 $ 5,521 $ 10,905 $ 11,383