Aggregate dividends paid during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

Name:	us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

Name:	us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the dividend to be paid was declared, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_DividendsPayableDateDeclaredDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_DividendsPayableDateOfRecordDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DividendsPayableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DividendsAxis=afco_InstallmentOneFiscalYearTwoZeroOneThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=afco_InstallmentTwoFiscalYearTwoZeroOneThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=afco_InstallmentOneFiscalYearTwoZeroOneFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=afco_InstallmentTwoFiscalYearTwoZeroOneFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=afco_InstallmentOneFiscalYearTwoZeroOneFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=afco_InstallmentTwoFiscalYearTwoZeroOneFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=afco_InstallmentThreeFiscalYearTwoZeroOneFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Stockholders' Equity - Summary of Dividends Declared and Paid to Common Stockholders (Details) - $ / shares								12 Months Ended
	Dec. 10, 2015	Oct. 04, 2015	May. 19, 2015	Dec. 09, 2014	May. 20, 2014	Dec. 03, 2013	May. 28, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Dividends Payable [Line Items]
Dividend per Common Share								$ 0.2500	$ 0.2500	$ 0.2250
FY 2013
Dividends Payable [Line Items]
Declaration Date										May 28, 2013
Record Date										Jun. 18, 2013
Payment Date										Jul. 27, 2013
Dividend per Common Share							$ 0.1000
FY 2013
Dividends Payable [Line Items]
Declaration Date										Dec. 03, 2013
Record Date										Dec. 03, 2013
Payment Date										Dec. 23, 2013
Dividend per Common Share						$ 0.1250
FY 2014
Dividends Payable [Line Items]
Declaration Date									May 20, 2014
Record Date									May 20, 2014
Payment Date									Jun. 25, 2014
Dividend per Common Share					$ 0.1250
FY 2014
Dividends Payable [Line Items]
Declaration Date									Dec. 09, 2014
Record Date									Dec. 09, 2014
Payment Date									Dec. 30, 2014
Dividend per Common Share				$ 0.1250
FY 2015
Dividends Payable [Line Items]
Declaration Date								May 19, 2015
Record Date								Jun. 22, 2015
Payment Date								Jun. 30, 2015
Dividend per Common Share			$ 0.1250
FY 2015
Dividends Payable [Line Items]
Declaration Date								Oct. 04, 2015
Record Date								Oct. 01, 2015
Payment Date								Oct. 08, 2015
Dividend per Common Share		$ 0.0625
FY 2015
Dividends Payable [Line Items]
Declaration Date								Dec. 10, 2015
Record Date								Dec. 22, 2015
Payment Date								Dec. 29, 2015
Dividend per Common Share	$ 0.0625