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- Definition

Operating Loss Carryforward, Amount Relating to Prior Capitalization

+ References

No definition available.

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- Definition

Operating Loss Carryforwards Limitation on Use Per Year

+ References

No definition available.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 6

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 8

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 25

-Paragraph 20

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates.

+ References

No definition available.

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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- Definition

The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

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-Topic 740

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-Paragraph 3

-Subparagraph (b)

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-Publisher FASB

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-Topic 740

-SubTopic 10

-Section 30

-Paragraph 5

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=6907311&loc=d3e30536-109315

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- Definition

The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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- Definition

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Carryforwards

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- Definition

Amount of valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from tax credit carryforwards for which it is more likely than not that a tax benefit will not be realized.

+ References

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

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- Definition

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)(2)

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Income Taxes Income Taxes - Narrative (Details) (USD $)	12 Months Ended
Income Taxes Income Taxes - Narrative (Details) (USD $)	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforward, Amount Relating to May 2002 Recapitalization	$ 4,900,000
Operating Loss Carryforwards Limitation on Use Per Year	700,000
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	98,100,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	153,200,000
Deferred Tax Assets, Valuation Allowance	1,700,000
Operating Loss Carryforwards, Valuation Allowance	16,300,000
Unrecognized Tax Benefits	8,130,000us-gaap_UnrecognizedTaxBenefits	652,000us-gaap_UnrecognizedTaxBenefits	0us-gaap_UnrecognizedTaxBenefits
Change in tax positions related to current year	0	652,000
Indemnity Receivable	6,500,000dar_IndemnityReceivable
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	2,200,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	2,500,000
Internal Revenue Service (IRS)
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	82,400,000
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Amount	900,000
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	48,500,000
Tax Credit Carryforward, Amount	800,000
Canadian Tax Authority
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforward, Amount	55,100,000
Terra Transaction and Rothsay and VION Acquisition [Member]
Operating Loss Carryforwards [Line Items]
Change in tax positions related to current year	$ 7,400,000