Lease cost:

Amortization of right-of-use assets

$

902

$

1,179

$

1,806

$

2,306

Interest on lease obligations

104

207

216

361

Finance lease cost

1,006

1,386

2,022

2,667

Operating lease cost

1,127

1,442

2,214

3,274

Short-term lease cost

3,099

2,821

6,782

5,566

Total lease cost

$

5,232

$

5,649

$

11,018

$

11,507

Cash paid for amounts included in the measurement of lease obligations:

Operating cash flows from finance leases

$

216

$

361

Operating cash flows from operating leases

3,085

4,475

Financing cash flows from finance leases

2,054

2,825

$

5,355

$

7,661

Right-of-use assets obtained in exchange for new finance lease obligations

$

-

$

-

Right-of-use assets obtained in exchange for new operating lease obligations

$

2,116

$

2,117

Right-of-use assets derecognized upon early termination of finance leases

$

2

$

8

Right-of-use assets derecognized upon early termination of operating leases

$

74

$

8,222

Weighted-average lease term (years):

Finance leases

3.5

4.1

Operating leases

4.0

4.3

Weighted-average discount rate (percentage):

Finance leases

4.2

%

4.0

%

Operating leases

5.2

%

4.9

%