v3.5.0.2

Interest Rate Swap Agreements (Details)			3 Months Ended	9 Months Ended
	Jul. 01, 2011	Jun. 30, 2011	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Feb. 12, 2016 USD ($)	Aug. 12, 2011 USD ($) agreement	Apr. 13, 2011 USD ($)
Designated as hedges | Interest rate swap agreements | CRNF
Interest rate swap
Number of agreements | agreement							2
Aggregate notional amount							$ 62,500,000
Average fixed rate of interest (as a percent)	1.96%
Loss reclassified to earnings			$ 300,000	$ 100,000	$ 800,000
Designated as hedges | Interest Rate Swap June 30, 2011 | CRNF
Interest rate swap
Fixed rate (as a percent)		1.94%
Settlement period		90 days
Designated as hedges | Interest Rate Swap July 1, 2011 | CRNF
Interest rate swap
Fixed rate (as a percent)	1.975%
Settlement period	90 days
Line of Credit | Term Loan | CRNF Credit Facility
Interest rate swap
Debt instrument face amount								$ 125,000,000
Line of Credit | Term Loan | CRNF | CRNF Credit Facility
Interest rate swap
Debt instrument face amount						$ 125,000,000

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

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+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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X

- Definition

Average fixed interest rate related to the group of interest rate derivatives.

+ References

No definition available.

+ Details

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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- 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.

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- Definition

The amount of net gains or losses on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

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- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

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-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

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