Debt (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Schedule of Principal Debt Outstanding

Debt consists of the following:

(In millions)	As of September 30, 2016
	Principal Outstanding		Deferred Debt Issuance Costs			Unamortized Discount			Carrying Amount
Revolving secured line of credit (1)	$	85.2	$	—		$	—		$	85.2
Secured financing (2)	1,893.0		(8.8		)	—			1,884.2
Senior notes	550.0		(7.4		)	(1.6		)	541.0
Total debt	$	2,528.2	$	(16.2	)	$	(1.6	)	$	2,510.4
(In millions)	As of December 31, 2015
	Principal Outstanding		Deferred Debt Issuance Costs			Unamortized Discount			Carrying Amount
Revolving secured line of credit (1)	$	57.7	$	—		$	—		$	57.7
Secured financing (2) (3)	1,478.6		(8.5		)	—			1,470.1
Senior notes (3)	550.0		(8.3		)	(1.7		)	540.0
Total debt	$	2,086.3	$	(16.8	)	$	(1.7	)	$	2,067.8

(1) Excludes deferred debt issuance costs of $2.6 million and $2.2 million as of September 30, 2016 and December 31, 2015, respectively, which are included in other assets.

(2) Warehouse facilities and asset-backed secured financings ("Term ABS").

(3) Prior year amounts have been reclassified to reflect the adoption of ASU 2015-03, as amended by ASU No. 2015-15, which resulted in a reclassification of certain deferred debt issuance costs from other assets to secured financing and senior notes.

Schedule of General Information of Financing Transaction

(Dollars in millions)
Financings	Wholly-owned Subsidiary	Maturity Date		Financing Amount		Interest Rate as of    September 30, 2016
Revolving Secured Line of Credit	n/a	06/22/2019		$	310.0	At our option, either LIBOR plus 187.5 basis points or the prime rate plus 87.5 basis points
Warehouse Facility II (1)	CAC Warehouse Funding Corp. II	06/23/2019	(3)	$	400.0	LIBOR plus 225 basis points (2)
Warehouse Facility IV (1)	CAC Warehouse Funding LLC IV	04/30/2018	(3)	$	75.0	LIBOR plus 200 basis points (2)
Warehouse Facility V (1)	CAC Warehouse Funding LLC V	08/18/2019	(4)	$	100.0	LIBOR plus 225 basis points (2)
Warehouse Facility VI (1)	CAC Warehouse Funding LLC VI	09/30/2018	(3)	$	75.0	LIBOR plus 200 basis points
Term ABS 2013-2 (1)	Credit Acceptance Funding LLC 2013-2	10/15/2015	(3)	$	197.8	Fixed rate
Term ABS 2014-1 (1)	Credit Acceptance Funding LLC 2014-1	04/15/2016	(3)	$	299.0	Fixed rate
Term ABS 2014-2 (1)	Credit Acceptance Funding LLC 2014-2	09/15/2016	(3)	$	349.0	Fixed rate
Term ABS 2015-1 (1)	Credit Acceptance Funding LLC 2015-1	01/16/2017	(3)	$	300.6	Fixed rate
Term ABS 2015-2 (1)	Credit Acceptance Funding LLC 2015-2	08/15/2017	(3)	$	300.2	Fixed rate
Term ABS 2016-1 (1)	Credit Acceptance Funding LLC 2016-1	02/15/2018	(3)	$	385.0	LIBOR plus 195 basis points (2)
Term ABS 2016-2 (1)	Credit Acceptance Funding LLC 2016-2	05/15/2018	(3)	$	350.2	Fixed rate
2021 Senior Notes	n/a	02/15/2021		$	300.0	Fixed rate
2023 Senior Notes	n/a	03/15/2023		$	250.0	Fixed rate

(1) Financing made available only to a specified subsidiary of the Company.

(2) Interest rate cap agreements are in place to limit the exposure to increasing interest rates.

(3) Represents the revolving maturity date. The outstanding balance will amortize after the maturity date based on the cash flows of the pledged assets.

(4) Represents the revolving maturity date. The outstanding balance will amortize after the revolving maturity date and any amounts remaining on August 18, 2021 will be due.

Schedule of Additional Information Related to Debt Instruments

Additional information related to the amounts outstanding on each facility is as follows:

(In millions)	For the Three Months Ended   September 30,				For the Nine Months Ended   September 30,
	2016		2015		2016		2015
Revolving Secured Line of Credit
Maximum outstanding principal balance	$	92.1	$	142.6	$	186.4	$	206.3
Average outstanding principal balance	13.3		30.0		30.6		48.0
Warehouse Facility II
Maximum outstanding principal balance	$	—	$	200.8	$	200.1	$	200.8
Average outstanding principal balance	—		4.4		3.7		10.6
Warehouse Facility IV
Maximum outstanding principal balance	$	12.0	$	12.0	$	12.0	$	35.0
Average outstanding principal balance	12.0		12.0		12.0		8.2
Warehouse Facility V
Maximum outstanding principal balance	$	—	$	99.2	$	100.0	$	99.2
Average outstanding principal balance	—		9.6		1.4		16.4
Warehouse Facility VI
Maximum outstanding principal balance	$	—	$	—	$	49.9	$	—
Average outstanding principal balance	—		—		4.0		—

Summary of Debt

(Dollars in millions)	As of
	September 30, 2016			December 31, 2015
Revolving Secured Line of Credit
Principal balance outstanding	$	85.2		$	57.7
Amount available for borrowing (1)	224.8			252.3
Interest rate	2.41		%	2.30		%
Warehouse Facility II
Principal balance outstanding	$	—		$	—
Amount available for borrowing  (1)	400.0			400.0
Loans pledged as collateral	—			—
Restricted cash and cash equivalents pledged as collateral	1.1			1.2
Interest rate	—		%	—		%
Warehouse Facility IV
Principal balance outstanding	$	12.0		$	12.0
Amount available for borrowing (1)	63.0			63.0
Loans pledged as collateral	24.6			24.5
Restricted cash and cash equivalents pledged as collateral	1.0			0.9
Interest rate	2.52		%	2.42		%
Warehouse Facility V
Principal balance outstanding	$	—		$	—
Amount available for borrowing (1)	100.0			100.0
Loans pledged as collateral	—			—
Restricted cash and cash equivalents pledged as collateral	1.0			1.0
Interest rate	—		%	—		%
Warehouse Facility VI
Principal balance outstanding	$	—		$	14.7
Amount available for borrowing (1)	75.0			60.3
Loans pledged as collateral	—			20.7
Restricted cash and cash equivalents pledged as collateral	0.1			0.9
Interest rate	—		%	2.24		%
Term ABS 2013-1
Principal balance outstanding	$	—		$	39.6
Loans pledged as collateral	—			144.5
Restricted cash and cash equivalents pledged as collateral	—			14.6
Interest rate	—		%	1.56		%
Term ABS 2013-2
Principal balance outstanding	$	22.7		$	163.5
Loans pledged as collateral	182.5			234.7
Restricted cash and cash equivalents pledged as collateral	19.5			21.4
Interest rate	2.26		%	1.71		%
Term ABS 2014-1
Principal balance outstanding	$	173.3		$	299.0
Loans pledged as collateral	336.1			366.4
Restricted cash and cash equivalents pledged as collateral	32.5			31.9
Interest rate	1.84		%	1.72		%

Term ABS 2014-2
Principal balance outstanding	$	349.0		$	349.0
Loans pledged as collateral	442.2			430.5
Restricted cash and cash equivalents pledged as collateral	39.4			37.7
Interest rate	2.05		%	2.05		%
Term ABS 2015-1
Principal balance outstanding	$	300.6		$	300.6
Loans pledged as collateral	382.5			372.4
Restricted cash and cash equivalents pledged as collateral	32.6			29.3
Interest rate	2.26		%	2.26		%
Term ABS 2015-2
Principal balance outstanding	$	300.2		$	300.2
Loans pledged as collateral	379.3			390.4
Restricted cash and cash equivalents pledged as collateral	30.3			27.7
Interest rate	2.63		%	2.63		%
Term ABS 2016-1
Principal balance outstanding	$	385.0		$	—
Loans pledged as collateral	483.6			—
Restricted cash and cash equivalents pledged as collateral	37.2			—
Interest rate	2.46		%	—		%
Term ABS 2016-2
Principal balance outstanding	$	350.2		$	—
Loans pledged as collateral	514.1			—
Restricted cash and cash equivalents pledged as collateral	37.3			—
Interest rate	2.83		%	—		%
2021 Senior Notes
Principal balance outstanding	$	300.0		$	300.0
Interest rate	6.125		%	6.125		%
2023 Senior Notes
Principal balance outstanding	$	250.0		$	250.0
Interest rate	7.375		%	7.375		%

(1) Availability may be limited by the amount of assets pledged as collateral.

Summary of Term ABS Financings

The table below sets forth certain additional details regarding the outstanding Term ABS financings:

(Dollars in millions)
Term ABS Financings	Close Date	Net Book Value of Loans Contributed at Closing		24 month Revolving Period
Term ABS 2013-2	October 31, 2013	$	250.1	Through October 15, 2015
Term ABS 2014-1	April 16, 2014	$	374.7	Through April 15, 2016
Term ABS 2014-2	September 25, 2014	$	437.6	Through September 15, 2016
Term ABS 2015-1	January 29, 2015	$	375.9	Through January 16, 2017
Term ABS 2015-2	August 20, 2015	$	375.5	Through August 15, 2017
Term ABS 2016-1	February 26, 2016	$	481.4	Through February 15, 2018
Term ABS 2016-2	May 12, 2016	$	437.8	Through May 15, 2018