Lease (Schedule of Components of Lease Expense) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2019
Leases [Abstract]
Operating lease cost	$ 5,856	$ 11,746
Variable lease costs	2,891	5,805
Short term lease costs	159	448
Sublease income	(1,737)	(3,517)
Total net lease cost	$ 7,169	$ 14,482

Operating lease cost includes multiple real estate and equipment leases.

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- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

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-Publisher FASB
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- References

No definition available.

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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.

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