Premiums from insurance contracts we underwrite, fees received from segregated funds insurance contracts, and income earned on our invested assets are excluded from the definition of revenues from contracts with customers in accordance with U.S. GAAP.

The disaggregation of our revenues from contracts with customers were as follows:

	Year ended December 31,
	2018		2017		2016
	(In thousands)
Term Life Insurance segment revenues:
Other, net	$	42,374	$	41,236	$	36,541
Total segment revenues from contracts with customers		42,374		41,236		36,541
Revenues from sources other than contracts with customers		1,080,826		950,988		829,841
Total Term Life Insurance segment revenues	$	1,123,200	$	992,224	$	866,382

Investment and Savings Products segment revenues:
Commissions and fees
Sales-based revenues	$	259,991	$	233,005	$	227,320
Asset-based revenues		245,295		216,527		183,309
Account-based revenues		81,802		55,030		50,861
Other, net		9,631		9,555		8,836
Total segment revenues from contracts with customers		596,719		514,117		470,326
Revenues from sources other than contracts with customers (segregated funds)		58,357		58,630		54,295
Total Investment and Savings Products segment revenues	$	655,076	$	572,747	$	524,621

Corporate and Other Distributed Products segment revenues:
Commissions and fees ⁽¹⁾	$	32,162	$	28,125	$	25,901
Other, net		4,982		5,300		5,199
Total segment revenues from contracts with customers		37,144		33,425		31,100
Revenues from sources other than contracts with customers		84,423		90,706		96,981
Total Corporate and Other Distributed Products segment revenues	$	121,567	$	124,131	$	128,081

We recognize revenue upon the satisfaction of the related performance obligation, unless the transaction price includes variable consideration that is constrained; in such case, we recognize revenue when the uncertainty associated with the constrained amount is subsequently resolved. Variable consideration is not treated as constrained to the extent it is probable that no significant reversal in the amount of cumulative revenue recognized will occur when the uncertainty associated with the variable consideration is resolved. We have no material obligations for refunds of commission and fees on contracts with customers subsequent to completion of our performance obligation.

Investment and Savings Products Marketing and Distribution Services. We receive commissions and fees from mutual fund companies and annuity providers for the marketing and distribution by the licensed sales representatives of investment and savings products underwritten by such companies and providers. We recognize the sales-based marketing and distribution revenue received from such companies and providers at the point in time our performance obligation to them is satisfied, which is the trade date. The sales-based commissions from mutual fund companies and annuity providers are known and are due at the same time our performance obligation to such mutual fund companies and annuity providers is satisfied. We also receive ongoing asset-based commissions from mutual fund companies and annuity providers each reporting period based on client asset values. We do not recognize revenue for asset-based marketing and distribution commissions until the end of each subsequent reporting period when the amount becomes known and due from mutual fund companies or annuity providers as this revenue represents variable consideration that is fully constrained at the point in time our distinct performance obligation to mutual fund companies and annuity providers is satisfied. We consider variable consideration in the form of asset-based marketing and distribution commissions to be fully constrained as the amounts we will be entitled to collect are highly uncertain and susceptible to factors outside of our control. Such factors include the

market values of assets under management and the length of time investors hold their accounts. Asset-based marketing and distribution commissions recognized during the current period are almost exclusively attributable to distinct performance obligations satisfied to mutual fund companies and annuity providers in previous periods. The adoption of ASC 606 did not result in any changes in the timing or measurement of revenue recognition for marketing and distribution services of investment and savings products.

Investment Advisory and Administrative Services. We provide investment advisory and administrative services over time to investors in the managed investments programs we offer. We recognize revenue as our performance obligation is satisfied over time for daily investment advisory and administrative services that are substantially the same and have the same pattern of delivery. Fees for these services, which are based on a percentage of client assets in managed investment programs, become known and are charged to investors during the same reporting period in which the daily investment advisory and administrative services are performed. The adoption of ASC 606 did not result in any changes in the timing or measurement of revenue recognition for investment advisory and administrative services.

Account-based Services. We provide distinct transfer agent recordkeeping services for certain mutual funds we distribute and non-bank custodial services to investors purchasing investment products we distribute through qualified retirement accounts in the United States. Fees charged for these account-based services consist primarily of a stated fee for each investment position or each qualified retirement account. Generally, our performance obligation for each account-based service arrangement is satisfied over time and is substantially the same with the same pattern of delivery. We recognize revenue to which we are entitled for each investment position or each qualified account over time based on the time-based pro-rata amount earned each reporting period. The adoption of ASC 606 did not result in any changes in the timing or measurement of revenue recognition for account-based services.

Distribution of Other Third-party Financial Products. We distribute various other financial products on behalf of third parties to consumers. We receive upfront commissions and/or renewal commissions from product providers for sales of other financial product sales we have arranged. We recognize revenue at the point in time our performance obligation to product providers is satisfied, which is generally on the date the financial product is purchased by the consumer from the product provider. For certain financial products, most notably prepaid legal subscriptions and auto and homeowners’ insurance referrals, we receive ongoing renewal commissions that coincide with recurring payments received by product providers from active subscribers or policyholders. Ongoing renewal commissions represent variable consideration that will not be resolved until after the reporting period in which our performance obligation has been satisfied. We estimate variable consideration in the transaction price for these financial products (with the exception of miscellaneous products for which we expect nominal ongoing commissions) as the expected amount of commissions to be received over the life of the subscription or referred policy and apply a constraint so that it is probable that a subsequent change in estimate will not result in a significant revenue reversal. Management judgment primarily is required to determine the average life of a subscription or referred policy, which we establish based on historical information. We recognize variable consideration in excess of the amount constrained in subsequent reporting periods when the uncertainty is resolved and the excess amounts are due from the product providers. Prior to the adoption of ASC 606, we recognized revenue for ongoing renewal commissions associated with other third-party financial products upon receipt of the commission revenue from the product providers, which is the point in time when the amount became fixed and determinable.

Revenue for Other Services. We recognize revenue from the sale of other miscellaneous products and services, including monthly subscription fees from the sales representatives for access to POL, upon the transfer of the promised product or service. For POL subscriptions, we satisfy our performance obligation by providing subscribers access to the promised services over time during each monthly subscription period. Revenue recognized from the sale of other miscellaneous products and services becomes known and charged at the same time we satisfy the corresponding performance obligation. The adoption of ASC 606 did not result in any changes in the timing or measurement of revenue recognition for revenue for other services.

Contract Balances. For revenue associated with ongoing renewal commissions on other distributed financial products, we record a contract asset for the amount of ongoing renewal commissions we anticipate collecting in reporting periods subsequent to the sale or referral, less amounts that are constrained in other assets. The contract asset is reduced for commissions that are billed and become due receivables from product providers during the reporting period.

No significant estimate adjustments were made to the contract asset and no impairment losses were recognized on the contract asset during the year ended December 31, 2018. Incremental costs to obtain or fulfill contracts, most notably sales commissions to the sales representatives, are not incurred prior to the recognition of the related revenue. Therefore, we have no assets recognized for incremental costs to obtain or fulfill contracts.