COMMITMENTS AND CONTINGENCIES - Litigation and Regulatory Matters (Details) item in Millions	12 Months Ended
Dec. 31, 2019 USD ($) item	Dec. 31, 2018
Cardholders
Approximate number of cardholders \| item	61.0
Average unused lines of credit per account	$ 2,307
Indemnification Agreement
Contingencies
Legal fees	$ 3,200,000
Comenity Bank
Tier 1 capital to average assets
Tier 1 capital to average assets, Actual Ratio (as a prcent)	12.90%	13.10%
Tier 1 capital to average assets, Minimum Ratio for Capital Adequacy Purposes (as a percent)	4.00%	4.00%
Tier 1 capital to average assets, Minimum Ratio to be Well Capitalized under Prompt Corrective Action Provisions	5.00%	5.00%
Common Equity Tier 1 capital to risk-weighted assets
Common Equity Tier 1 capital to risk-weighted assets, Actual Ratio (as a percent)	14.60%	14.60%
Common Equity Tier 1 capital to risk-weighted assets, Minimum Ratio for Capital Adequacy Purposes (as a percent)	4.50%	4.50%
Common Equity Tier 1 capital to risk-weighted assets, Minimum Ratio to be Well Capitalized under Prompt Corrective Action Provisions (as a percent)	6.50%	6.50%
Risk Based Ratios [Abstract]
Tier 1 capital to risk-weighted assets, Actual Ratio (as a percent)	14.60%	14.60%
Tier 1 capital to risk-weighted assets, Minimum Ratio for Capital Adequacy Purposes (as a percent)	6.00%	6.00%
Tier 1 capital to risk-weighted assets, Minimum Ratio to be Well Capitalized under Prompt Corrective Action Provisions (as a percent)	8.00%	8.00%
Total capital to risk-weighted assets, Actual Ratio (as a percent)	15.90%	15.90%
Total capital to risk-weighted assets, Minimum Ratio for Capital Adequacy Purposes (as a percent)	8.00%	8.00%
Total capital to risk-weighted assets, Minimum Ratio to be Well Capitalized under prompt Corrective Action Provisions (as a percent)	10.00%	10.00%
Comenity Capital Bank
Tier 1 capital to average assets
Tier 1 capital to average assets, Actual Ratio (as a prcent)	11.90%	12.10%
Tier 1 capital to average assets, Minimum Ratio for Capital Adequacy Purposes (as a percent)	4.00%	4.00%
Tier 1 capital to average assets, Minimum Ratio to be Well Capitalized under Prompt Corrective Action Provisions	5.00%	5.00%
Common Equity Tier 1 capital to risk-weighted assets
Common Equity Tier 1 capital to risk-weighted assets, Actual Ratio (as a percent)	14.40%	14.40%
Common Equity Tier 1 capital to risk-weighted assets, Minimum Ratio for Capital Adequacy Purposes (as a percent)	4.50%	4.50%
Common Equity Tier 1 capital to risk-weighted assets, Minimum Ratio to be Well Capitalized under Prompt Corrective Action Provisions (as a percent)	6.50%	6.50%
Risk Based Ratios [Abstract]
Tier 1 capital to risk-weighted assets, Actual Ratio (as a percent)	14.40%	14.40%
Tier 1 capital to risk-weighted assets, Minimum Ratio for Capital Adequacy Purposes (as a percent)	6.00%	6.00%
Tier 1 capital to risk-weighted assets, Minimum Ratio to be Well Capitalized under Prompt Corrective Action Provisions (as a percent)	8.00%	8.00%
Total capital to risk-weighted assets, Actual Ratio (as a percent)	15.70%	15.70%
Total capital to risk-weighted assets, Minimum Ratio for Capital Adequacy Purposes (as a percent)	8.00%	8.00%
Total capital to risk-weighted assets, Minimum Ratio to be Well Capitalized under prompt Corrective Action Provisions (as a percent)	10.00%	10.00%
Epsilon \| Discontinued Operations, Disposed of by Sale \| Indemnification Agreement
Contingencies
Loss contingency	$ 32,900,000

Represents the average unused line of credit amount per client cardholder account.

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The Common Equity Tier 1 Capital Ratio (common equity tier 1 capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

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Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

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