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Leases Leases (Tables)
9 Months Ended
Sep. 30, 2019
Lease Disclosure [Abstract]  
Lease, Cost [Table Text Block] The following table presents information related to our total lease cost included in our condensed consolidated statements of income:
 
 
 
 
Three Months Ended
 
Nine Months Ended
 
 
 
 
September 30,
 
September 30,
( in thousands)
 
Classification
 
2019
 
2018
 
2019
 
2018
Operating lease cost (1)
 
Operations expense
 
$
638

 
$
1,055

 
$
1,926

 
$
2,860

Finance lease cost:
 
 
 
 
 
 
 
 
 
 
Amortization of lease assets
 
Depreciation and amortization 
 

 
364

 
650

 
1,083

Interest on lease liabilities
 
Interest expense
 

 
11

 
5

 
42

Net lease cost
 
 
 
$
638

 
$
1,430

 
$
2,581

 
$
3,985

(1) Includes short-term leases and variable lease costs, which are immaterial
Schedule of Leases Reported on Consolidated Statement of Financial Position [Table Text Block]
The following table presents the balance and classifications of our right of use assets and lease liabilities included in our condensed consolidated balance sheet at September 30, 2019:
(in thousands)
 
Balance sheet classification
 
Amount
Assets
 
 
 
 
Operating lease assets
 
Operating lease right-of-use assets
 
$
12,004

Total lease assets
 
 
 
$
12,004

Liabilities
 
 
 
 
Current
 
 
 
 
Operating lease liabilities
 
Other accrued liabilities
 
$
1,694

Noncurrent
 
 
 
 
Operating lease liabilities
 
Operating lease - liabilities
 
10,392

Total lease liabilities
 
 
 
$
12,086


Leases, Weighted Average Remaining Lease Term [Table Text Block]
The following table presents our weighted-average remaining lease terms and weighted-average discount rates for our operating and financing leases at September 30, 2019:
 
 
At September 30, 2019
Weighted-average remaining lease term (in years)
 
 
Operating leases
 
8.9

Weighted-average discount rate
 
 
Operating leases
 
3.8
%

Lease, Cash Flow [Table Text Block]
The following table presents additional information related to cash paid for amounts included in the measurement of lease liabilities included in our condensed consolidated statements of cash flows as of September 30, 2019 and 2018:
 
 
Nine Months Ended
 
 
September 30,
(in thousands)
 
2019
 
2018
Operating cash flows from operating leases
 
$
1,580

 
$
2,272

Operating cash flows from finance leases
 
$
5

 
$
42

Financing cash flows from finance leases
 
$
650

 
$
1,083



Schedule of Maturities of Leases [Table Text Block]
The following table presents the future undiscounted maturities of our operating and financing leases at September 30, 2019 and for each of the next five years and thereafter:
(in thousands)
 
Operating 
Leases (1)
 
Finance Leases
 
Total
Remainder of 2019
 
$
612

 
$

 
$
612

2020
 
2,104

 

 
2,104

2021
 
1,866

 

 
1,866

2022
 
1,705

 

 
1,705

2023
 
1,709

 

 
1,709

2024
 
1,463

 

 
1,463

Thereafter
 
4,916

 

 
4,916

Total lease payments
 
$
14,375

 
$

 
$
14,375

Less: Interest
 
2,289

 

 
2,289

Present value of lease liabilities
 
$
12,086

 
$

 
$
12,086

(1)  Operating lease payments include $3.9 million related to options to extend lease terms that are reasonably certain of being exercised.
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
The following table presents future minimum lease payments for our operating leases at December 31, 2018 under ASC 840 and is being presented for comparative purposes:
Year(s)
 
2019
 
2020
 
2021
 
2022
 
2023
 
Thereafter
 
Total
(in thousands)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Expected payments
 
$2,335
 
$1,993
 
$1,761
 
$1,689
 
$1,642
 
$5,397
 
$14,817