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LEASES (Tables) | 6 Months Ended
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Jun. 30, 2019
LEASES |
Summary of components of lease expense | The components of lease expense were as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​
​ | Three months ended June 30, 2019 | ​ | Six months ended June 30, 2019
Operating lease cost: | ​ | ​ | ​ | ​ | ​
Operating lease cost | $ | 4,151 | ​ | $ | 7,667
Short-term lease cost | ​ | 867 | ​ | ​ | 1,578
Variable lease cost | ​ | 288 | ​ | ​ | 1,250
Total operating lease cost | $ | 5,306 | ​ | $ | 10,495
​ | ​ | ​ | ​ | ​ | ​
Finance lease cost: | ​ | ​ | ​ | ​ | ​
Amortization of right-of-use asset | $ | 586 | ​ | $ | 1,179
Variable costs | ​ | 262 | ​ | ​ | 558
Total finance lease cost | $ | 848 | ​ | $ | 1,737
Summary of weighted-average remaining lease term and discount rate | The weighted average remaining lease terms and discount rates as of June 30, 2019 are noted in the table below: ​
​ | ​ | ​
​ | ​ | ​
Weighted average remaining lease term | ​ | ​
Operating leases | ​ | 7.1 years
Financing leases | ​ | 11.9 years
​ | ​ | ​
Weighted average discount rate | ​ | ​
Operating leases | ​ | 5.1%
Financing leases | ​ | n/a
​
Summary of maturities of lease liabilities | Maturities of lease liabilities as of June 30, 2019 were as follows (in thousands): ​
​ | ​ | ​
​ | Operating Leases
2019 (excluding the six months ended June 30, 2019) | $ | 6,637
2020 | ​ | 13,459
2021 | ​ | 12,162
2022 | ​ | 11,351
2023 | ​ | 10,544
Thereafter | ​ | 28,236
Total lease payments | ​ | 82,389
Less imputed interest | ​ | (13,620)
Total | $ | 68,769
Summary of maturities of lease liabilities as of December 31, 2018 | Maturities of lease liabilities as of December 31, 2018 were as follows (in thousands): ​
​ | ​ | ​
​ | Operating Leases
2019 | $ | 11,801
2020 | ​ | 12,650
2021 | ​ | 11,491
2022 | ​ | 10,713
2023 | ​ | 9,990
Thereafter | ​ | 27,325
Total lease payments | $ | 83,970

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717 + Details
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