General - Components of Lease Expenses (Details) $ in Thousands	3 Months Ended
Mar. 31, 2019 USD ($)
Components of leases expenses:
Operating lease cost	$ 4,725
Finance lease cost:
Amortization of right-of-use asset	940
Interest on lease liabilities	216
Total finance lease cost	1,156
Short-term lease cost	318
Variable lease cost	874
Total lease cost	7,073
Sublease income	(98)
Net lease cost	$ 6,975

Total finance lease cost, including but not limited to, amortization of right-of-use assets and interest expense.

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- Definition

Total operating and finance least cost excluding sublease income.

+ References

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- References

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- Definition

Amount of interest expense on finance lease liability.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

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- Definition

Amount of lease cost recognized by lessee for lease contract.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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- Definition

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

+ References

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- Definition

Amount of sublease income excluding finance and operating lease expense.

+ References

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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

+ References

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