COMMITMENTS AND CONTINGENCIES

Contingent Obligations Related to Divested Operations — We have divested certain businesses in recent years. In each case, we have retained certain known contingent obligations related to those businesses and/or assumed an obligation to indemnify the purchasers of the businesses for certain unknown contingent liabilities, including environmental liabilities. We believe that we have established adequate reserves, which are immaterial to the financial statements, for potential liabilities and indemnifications related to our divested businesses. Moreover, we do not expect any liability that we may have for these retained liabilities, or any indemnification liability, to materially exceed amounts accrued.

Contingent Obligations Related to Milk Supply Arrangements — On December 21, 2001, in connection with our acquisition of Legacy Dean, we purchased Dairy Farmers of America’s (“DFA”) 33.8% interest in our operations. In connection with that transaction, we issued a contingent, subordinated promissory note to DFA in the original principal amount of $40 million. The promissory note has a 20-year term that bears interest based on the consumer price index. Interest will not be paid in cash but will be added to the principal amount of the note annually, up to a maximum principal amount of $96 million. We may prepay the note in whole or in part at any time, without penalty. The note will only become payable if we materially breach or terminate one of our related milk supply agreements with DFA without renewal or replacement. Otherwise, the note will expire in 2021, without any obligation to pay any portion of the principal or interest. Payments made under the note, if any, would be expensed as incurred. We have not terminated, and we have not materially breached, any of our milk supply agreements with DFA related to the promissory note. We have previously terminated unrelated supply agreements with respect to several plants that were supplied by DFA. In connection with our continued focus on cost control and increased supply chain efficiency, we continue to evaluate our sources of raw milk supply.

Insurance — We use a combination of insurance and self-insurance for a number of risks, including property, workers’ compensation, general liability, automobile liability, product liability and employee health care utilizing high deductibles. Deductibles vary due to insurance market conditions and risk. Liabilities associated with these risks are estimated considering historical claims experience and other actuarial assumptions. Based on current information, we believe that we have established adequate reserves to cover these claims. At December 31, 2018 and 2017, we recorded accrued liabilities related to these retained risks of $142.0 million and $152.6 million, respectively, including both current and long-term liabilities.

Lease and Purchase Obligations — We lease certain property, plant and equipment used in our operations under both capital and operating lease agreements. Such leases, which are primarily for machinery, equipment and vehicles, including our distribution fleet, have lease terms ranging from one to 20 years. Certain of the operating lease agreements require the payment of additional rentals for maintenance, along with additional rentals based on miles driven or units produced. Certain leases require us to guarantee a minimum value of the leased asset at the end of the lease. Our maximum exposure under those guarantees is not a material amount. Rent expense was $143.3 million, $135.4 million and $127.3 million for 2018, 2017 and 2016, respectively.

The net book value of assets under capital leases, which are included in property, plant and equipment in our Consolidated Balance Sheets, are as follows:



	Year Ended December 31
	2018			2017
	(In thousands)
Machinery and equipment	$	5,481		$	5,619
Less accumulated depreciation	(4,045		)	(2,948		)
Net book value of assets under capital leases	$	1,436		$	2,671

Future minimum payments at December 31, 2018 under non-cancelable capital leases and operating leases with terms in excess of one year are summarized below:



	Capital Leases			Operating Leases
	(In thousands)
2019	$	1,271		$	118,827
2020	398			90,615
2021	—			64,501
2022	—			45,049
2023	—			32,771
Thereafter	—			50,998
Total minimum lease payments	1,669			$	402,761
Less amount representing interest	(51		)
Present value of capital lease obligations	$	1,618

We have entered into various contracts, in the normal course of business, obligating us to purchase minimum quantities of raw materials used in our production and distribution processes, including conventional raw milk, diesel fuel, sugar and other ingredients that are inputs into our finished products. We enter into these contracts from time to time to ensure a sufficient supply of raw ingredients. In addition, we have contractual obligations to purchase various services that are part of our production process.

Litigation, Investigations and Audits — We are party from time to time to certain claims, litigations, audits and investigations. Potential liabilities associated with these other matters are not expected to have a material adverse impact on our financial position, results of operations, or cash flows.