9. Commitments and contingencies
 
At December 31, 2018, we were the lessee on operating leases for equipment and real property.  Rent expense was $1.1 million, $1.1 million and $1.0 million in 2018, 2017, and 2016, respectively.  Minimum aggregate rental payments required under operating leases that have initial or remaining non-cancelable lease terms in excess of one year as of December 31, 2018 are as follows: $1.0 million in 2019; $1.0 million in 2020; $0.7 million in 2021; $0.4 million in 2022, $0.3 million in 2023 and $0.9 million  thereafter.

Historical Timeline

Fiscal YearFiled
2018Mar 18, 2019Showing above
2017Mar 21, 2018
2016Mar 16, 2017

About Commitments Disclosures

Commitments and contingencies disclosures catalog a company's off-balance-sheet obligations and legal exposures — purchase commitments, guarantee arrangements, pending litigation, and regulatory proceedings. These items represent potential future cash outflows that may not appear as liabilities on the balance sheet until they become probable and estimable.

Key signals: litigation reserves and disclosed loss ranges quantify management's estimate of legal exposure, but unquantified "reasonably possible" losses often represent the larger risk. Watch for changes in language around pending cases — shifts from "remote" to "reasonably possible" or increases in estimated loss ranges signal deteriorating outcomes. Unconditional purchase obligations and take-or-pay contracts create fixed cost structures that reduce operational flexibility. Guarantee arrangements for subsidiaries or joint ventures can create cascading obligations. Compare the total commitment schedule against projected free cash flow to assess whether the company can meet its obligations without additional financing.