Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

The following table presents the economic lives, acquisition date values, accumulated amortization and net carrying values for other intangible assets and goodwill, by company:



$ in Millions	Weighted Average Economic Life (in Years)	December 31, 2018							December 31, 2017
$ in Millions	Weighted Average Economic Life (in Years)	Acquisition Date Fair Value		Accumulated Amortization		Net Carrying Value			Acquisition Date Fair Value		Accumulated Amortization		Net Carrying Value
Goodwill:
NSM ⁽¹⁾⁽²⁾	N/A	$	354.3	$	—	$	354.3		$	—	$	—	$	—
MediaAlpha	N/A	18.3		—		18.3			18.3		—		18.3
Buzz ⁽³⁾	N/A	7.3		—		7.3			7.6		—		7.6
Total goodwill		379.9		—		379.9			25.9		—		25.9

Other intangible assets:
NSM ⁽¹⁾
Customer relationships	9	85.3		6.0		79.3			—		—		—
Trade names	20	51.2		1.8		49.4			—		—		—
Information technology	5	3.7		.5		3.2			—		—		—
Subtotal		140.2		8.3		131.9			—		—		—

MediaAlpha
Customer relationships	9	26.8		4.9		21.9			26.8		2.4		24.4
Information technology	5	33.3		30.9		2.4			33.3		24.3		9.0
Other	3	9.8		9.0		.8			9.8		7.8		2.0
Subtotal		69.9		44.8		25.1			69.9		34.5		35.4

Buzz
Trademark	7	.6		.2		.4			.6		.1		.5
Information technology	5	.5		.3		.2			.5		.2		.3
Subtotal		1.1		.5		.6			1.1		.3		.8

Total other intangible assets		211.2		53.6		157.6			71.0		34.8		36.2
Total goodwill and other intangible assets		$	591.1	$	53.6	$	537.5		$	96.9	$	34.8	$	62.1

Goodwill and other intangible assets attributed to non-controlling interests						(40.6		)					(21.1		)
Goodwill and other intangible assets included in White Mountains’s common shareholders’ equity						$	496.9						$	41.0

⁽¹⁾Includes the effect of foreign currency translation from the date of acquisition of $(2.2) for goodwill and $(0.7) for other intangible assets.

⁽²⁾The relative fair values of goodwill and other intangible assets recognized in connection with the acquisition of KBK had not yet been determined at December 31, 2018. See Note 2 — “Significant Transactions”.

⁽³⁾Includes the effect of foreign currency translation from the date of acquisition of $(0.3) for goodwill.

Schedule of Goodwill and Intangible Assets Rollforward

The following table presents the change in goodwill and other intangible assets:



	December 31,
	2018						2017
Millions	Goodwill			Other Intangible Assets			Goodwill		Other Intangible Assets
Beginning balance	$	25.9		$	36.2		$	25.9	$	19.3
Acquisitions of businesses ⁽¹⁾	356.5			140.9			—		—
Acquisitions of asset groups⁽²⁾	—			—			—		27.6
Foreign currency translation	(2.5		)	(.7		)	—		—
Acquisitions of other intangible assets	—			—			—		—
Amortization	—			(18.8		)	—		(10.7		)
Ending balance	$	379.9		$	157.6		$	25.9	$	36.2

⁽¹⁾During 2018, amounts include acquisitions related to NSM, Fresh Insurance and KBK. See Note 2 — “Significant Transactions”.

⁽²⁾During 2017, amounts include certain assets associated with the Health, Life and Medicare insurance business of Healthplans.com for an aggregate purchase price of $28.0. See Note 2 — “Significant Transactions”.

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

White Mountains expects to recognize amortization expense in each of the next five years as the following table presents:



Millions	Amortization Expense
2019	$	18.1
2020	16.0
2021	16.0
2022	15.8
2023 and years after	89.5
Total	$	155.4