Annual goodwill impairment testing date.

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- Definition

Number of single customers comprising more than ten percent of consolidated net sales.

+ References

No definition available.

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- Definition

Percentage of net sales per customer, maximum.

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No definition available.

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- Definition

Significant accounting policies.

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- Definition

Amount of expense for amortization of capitalized computer software costs.

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-Name Accounting Standards Codification
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- Definition

1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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- Definition

Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees.

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- Definition

The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total.

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

This represents the entire liability recognized in the balance sheet that is associated with other postretirement defined benefit plans (excluding pension plans).

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Significant Accounting Policies - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) Customer	Dec. 31, 2015 USD ($) Customer	Dec. 31, 2014 USD ($) Customer	Oct. 01, 2016 USD ($)
Significant Accounting Policies [Line Items]
Number of single customers comprising more than 10% of consolidated net sales \| Customer	0	0	0
Percentage of net sales per customer, maximum	10.00%	10.00%	10.00%
Annual goodwill impairment testing date	--10-31
R.R. Donnelley & Sons Company
Significant Accounting Policies [Line Items]
Net pension plan liabilities				$ 68.3
Total benefit plan liability				317.0
Plan assets, fair market value				248.7
Net other postretirement benefit liability				$ 1.5
Computer Software, Intangible Asset
Significant Accounting Policies [Line Items]
Amortization expense related to internally-developed software	$ 20.5	$ 17.2	$ 14.6
Maximum \| Computer Software, Intangible Asset
Significant Accounting Policies [Line Items]
Estimated useful life of computer software	5 years
Buildings \| Minimum
Significant Accounting Policies [Line Items]
Estimated useful life	15 years
Buildings \| Maximum
Significant Accounting Policies [Line Items]
Estimated useful life	40 years
Machinery and Equipment \| Minimum
Significant Accounting Policies [Line Items]
Estimated useful life	3 years
Machinery and Equipment \| Maximum
Significant Accounting Policies [Line Items]
Estimated useful life	15 years
Leasehold Improvements \| Maximum
Significant Accounting Policies [Line Items]
Estimated useful life	7 years