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Leases - Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018
Finance lease cost:
Amortization of right-of-use assets	$ 2,571	$ 5,140	$ 0
Interest on lease liabilities	609	1,249
Operating lease cost	163	289
Sublease income	(237)	(824)
Total lease cost	$ 3,106	$ 5,854

X

- 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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X

- Definition

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

+ References

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-Publisher FASB
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X

- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

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X

- References

No definition available.

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X

- 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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X

- Definition

Amount of sublease income excluding finance and operating lease expense.

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