pre_text: Contractual Obligations The following table presents the payments due by fiscal year for our outstanding contractual obligations as of December 31, 2019 (in thousands): (1) Includes estimated cash interest to be paid over the remaining terms of the underlying debt. Interest payments are based on fixed and floating rates as of December 31, 2019. (2) Purchase obligations represent agreements to purchase goods or services, including open purchase orders and contracts with fixed volume commitments, that are noncancelable or cancelable with a significant penalty. Purchase obligations for our long-term supply agreements for the purchase of substrate glass and cover glass represent specified termination penalties, which are up to $430 million in the aggregate under the agreements. Our actual purchases under these supply agreements are expected to be approximately $2.4 billion of substrate glass and $500 million of cover glass. (3) In connection with business or project acquisitions, we may agree to pay additional amounts to the selling parties upon achievement of certain milestones. See Note 14. “Commitments and Contingencies” to our consolidated financial statements for further information. (4) Transition tax obligations represent estimated payments for U.S. federal taxes associated with accumulated earnings and profits of our foreign corporate subsidiaries. See Note 18. “Income Taxes” to our consolidated financial statements for further information. (5) Includes expected letter of credit fees and unused revolver fees. We have excluded $72.2 million of unrecognized tax benefits from the amounts presented above as the timing of such obligations is uncertain.
table: Payments Due by Year
table: Less Than 1 - 3 3 - 5 More Than
table: Total 1 Year Years Years 5 Years
table: Long-term debt obligations $482,892 $17,684 $98,571 $37,496 $329,141
table: Interest payments (1) . 168,040 17,276 29,533 27,409 93,822
table: Operating lease obligations 162,913 15,153 28,771 26,708 92,281
table: Purchase obligations (2) . 1,424,267 900,200 221,888 187,277 114,902
table: Recycling obligations . 137,761 — — — 137,761
table: Contingent consideration (3) . 6,895 2,395 4,500 — —
table: Transition tax obligations (4) . 76,667 6,620 14,747 32,259 23,041
table: Other obligations (5) . 10,527 2,933 5,164 2,430 —
table: Total . $2,469,962 $962,261 $403,174 $313,579 $790,948
question: Analyse this data from a financial earnings document. What difference between total interest payments and total operating lease obligations?