XML 33 R31.htm IDEA: XBRL DOCUMENT
v3.3.0.814

COMMITMENTS, CONTINGENCIES, AND RELATED PARTY TRANSACTIONS: (Tables) | 12 Months Ended
--- | ---
Sep. 30, 2015
COMMITMENTS, CONTINGENCIES, AND RELATED PARTY TRANSACTIONS: |
Schedule of minimum future lease commitments | At September 2015 the minimum future lease commitments were as follows:
Fiscal Year Ending |  | Operating Leases |
2016 |  | $ | 4,790,387 |
2017 |  |  | 3,607,560 |
2018 |  |  | 3,184,076 |
2019 |  |  | 2,390,650 |
2020 |  |  | 1,687,248 |
Thereafter |  |  | 1,399,456 |
​ | ​ | ​ | ​ | ​
Total minimum lease payments |  | $ | 17,059,377 |
​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
Summary of self-insured liabilities reserve | A summary of the activity in the Company's self-insured liabilities reserve is set forth below (in millions):
|  | 2015 |  | 2014 |
Beginning balance |  | $ | 1.4 |  | $ | 1.3 |
Charged to expense |  |  | 4.8 |  |  | 6.3 |
Payments |  |  | 4.6 |  |  | 6.2 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ending balance |  | $ | 1.6 |  | $ | 1.4 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

X
- Definition Represents information pertaining to self-insured liabilities reserve. + References No definition available. + Details
Name: | dit_ScheduleOfSelfInsuranceReserveTableTextBlock
Namespace Prefix: | dit_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
Name: | us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration