Accrued financing fees.

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- Definition

Amount of difference between fair value and book value of debt.

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No definition available.

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- Definition

The number of shares exchanged for the original debt being converted in a noncash transaction.

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No definition available.

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- Definition

Line of credit facility maximum borrowing base capacity.

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No definition available.

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- Definition

Percentage of collateralize equity interest on first-tier foreign subsidiaries.

+ References

No definition available.

+ Details

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- Definition

This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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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

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Date the debt instrument was repurchased, in CCYY-MM-DD format.

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No definition available.

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Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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- Definition

Description of the credit facility's borrowing capacity including discussion of how the borrowing capacity is determined (for example, borrowing capacity based on the amount of current assets).

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- Definition

The effective interest rate during the reporting period.

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-Name Accounting Standards Codification
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Debt - Narrative (Detail) - USD ($)				1 Months Ended		3 Months Ended		9 Months Ended
Debt - Narrative (Detail) - USD ($)	Sep. 29, 2017	Aug. 04, 2017	Jun. 21, 2017	Aug. 31, 2017	Jun. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Jun. 07, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Amount of difference between fair value and book value						$ 38,900,000		$ 38,900,000			$ 4,300,000
Gain (loss) on repurchase of debt instrument						(6,500,000)		$ (20,100,000)	$ (85,300,000)
Weighted average interest rate on borrowings								3.70%	2.20%
Debt instrument, repurchase date								Jun. 07, 2017
Interest income from investments/other						$ 800,000	$ 1,900,000	$ 2,300,000	$ 3,800,000
Donnelley Financial Solutions, Inc.
Debt Instrument [Line Items]
Non-cash debt-for-equity exchange, shares				99,594	6,143,208
Extinguishment of indebtedness				$ 1,900,000	$ 111,600,000
Third Party Purchase Notes \| Donnelley Financial Solutions, Inc.
Debt Instrument [Line Items]
Non-cash debt-for-equity exchange, shares			6,143,208
6.625% Debentures Due April 15, 2029
Debt Instrument [Line Items]
Maturity date								Apr. 15, 2029
Debt instrument, repurchase amount										$ 41,700,000
Interest rate						6.625%		6.625%		6.625%
6.50% Senior Notes Due November 15, 2023
Debt Instrument [Line Items]
Maturity date								Nov. 15, 2023
Debt instrument, repurchase amount										$ 59,400,000
Interest rate						6.50%		6.50%
6.00% Senior Notes Due April 1, 2024
Debt Instrument [Line Items]
Maturity date								Apr. 01, 2024
Debt instrument, repurchase amount										101,700,000
Interest rate					6.00%	6.00%		6.00%
6.625% Debentures , 6.50% and 6.00% Senior Notes
Debt Instrument [Line Items]
Gain (loss) on repurchase of debt instrument								$ 800,000
7.625% Senior Notes Due June 15, 2020
Debt Instrument [Line Items]
Maturity date								Jun. 15, 2020
Interest rate						7.625%		7.625%
7.625% Senior Notes Due June 15, 2020 \| Investment and Other (Expense ) Income, Net \| Donnelley Financial Solutions, Inc.
Debt Instrument [Line Items]
Net realized gain from disposition of retained shares								$ 92,400,000
7.625% Senior Notes Due June 15, 2020 \| Third Party Purchase Notes
Debt Instrument [Line Items]
Debt instrument, repurchase amount										$ 111,600,000
7.625% Senior Notes Due June 15, 2020 \| Cancellation of Third Party Purchase Notes
Debt Instrument [Line Items]
Gain (loss) on repurchase of debt instrument								$ (14,400,000)
7.875% Senior Notes Due March 15, 2021
Debt Instrument [Line Items]
Maturity date								Mar. 15, 2021
Interest rate						7.875%		7.875%
7.875% Senior Notes Due March 15, 2021 \| Investment and Other (Expense ) Income, Net \| Donnelley Financial Solutions, Inc.
Debt Instrument [Line Items]
Net realized gain from disposition of retained shares						$ 1,600,000		$ 1,600,000
7.875% Senior Notes Due March 15, 2021 \| Third Party Purchase Notes \| Donnelley Financial Solutions, Inc.
Debt Instrument [Line Items]
Non-cash debt-for-equity exchange, shares		99,594
Extinguishment of indebtedness		$ 1,900,000
7.875% Senior Notes Due March 15, 2021 \| Cancellation of Third Party Purchase Notes
Debt Instrument [Line Items]
Gain (loss) on repurchase of debt instrument						(300,000)		$ (300,000)
Credit Agreements
Debt Instrument [Line Items]
Line of credit maximum borrowing base capacity	$ 200,000,000
Line of credit borrowing capacity description								The amount available to be borrowed under the Credit Agreement is equal to the lesser of (a) $800.0 million and (b) the aggregate amount of accounts receivable, inventory, machinery and equipment and fee-owned real estate of the Company and certain of its domestic subsidiaries (the “Guarantors”) (collectively, the “Borrowing Base”), subject to certain eligibility criteria and advance rates. The aggregate amount of real estate, machinery and equipment that can be included in the Borrowing Base cannot exceed $200.0 million.
Gain (loss) on repurchase of debt instrument								$ (6,200,000)
Accrued financing fees						$ 600,000		$ 600,000
Maturity date								Sep. 29, 2022
Percentage of collateralize equity interest on first-tier foreign subsidiaries	65.00%
Credit Agreements \| Minimum
Debt Instrument [Line Items]
Unused line fee	0.25%
Credit Agreements \| Minimum \| Base Rate
Debt Instrument [Line Items]
Interest rate margin on borrowings	0.25%
Credit Agreements \| Minimum \| Eurocurrency
Debt Instrument [Line Items]
Interest rate margin on borrowings	1.25%
Credit Agreements \| Maximum
Debt Instrument [Line Items]
Unused line fee	0.375%
Credit Agreements \| Maximum \| Base Rate
Debt Instrument [Line Items]
Interest rate margin on borrowings	0.50%
Credit Agreements \| Maximum \| Eurocurrency
Debt Instrument [Line Items]
Interest rate margin on borrowings	1.50%
Credit Agreements \| Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity							$ 800,000,000		$ 800,000,000
Credit Agreements \| Senior Secured Asset-based Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity	$ 800,000,000