Leases (Tables)

3 Months Ended

Mar. 31, 2019

Lease Costs and Supplemental Cash Flow Information Related to Leases

The following table presents the lease costs and supplemental cash flow information related to our operating leases:



(dollars in thousands)	Three months ended March 31, 2019
Operating lease costs	$	3,961
Short-term lease costs⁽¹⁾	880
Total lease costs	$	4,841
⁽¹⁾Includes variable lease costs which are immaterial.

Cash paid for operating leases included in the measurement of lease liabilities	$	3,945
ROU assets obtained in exchange for lease liabilities	$	69,562

Reconciliation of Undiscounted Cash Flows to the Operating Lease Liability

The following table reconciles the undiscounted cash flows to the operating lease liabilities recorded on the balance sheet:



(dollars in thousands)	March 31, 2019
2019 (remainder of year)	$	11,162
2020	13,753
2021	10,304
2022	9,120
2023	8,507
2024 and thereafter	22,866
Total minimum lease payments	75,712
Less: interest	(9,541		)
Present value of future minimum lease payments	66,171
Less: lease liabilities (current portion)	(12,499		)
Noncurrent lease liabilities	$	53,672

Future Minimum Rental Payments Under Operating Leases

As presented in our 2018 Form 10-K, the future minimum rental commitments under ASC 840 for non-cancelable operating leases as of December 31, 2018, was as follows (dollars in thousands):



2019	2020	2021	2022	2023	2024 and thereafter
$15,407	$13,787	$10,339	$9,143	$8,551	$20,755