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Leases - Summary of Supplemental Balance Sheet Information related to Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets:
Operating lease right-of-use assets	$ 60,280	$ 0
Liabilities:
Other current liabilities	15,112	0
Operating lease liabilities	48,281	$ 0
Total operating lease liabilities	$ 63,393
Weighted average remaining operating lease term (years)	6 years 7 months 2 days
Weighted average operating lease discount rate	4.03%

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

+ References

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-Publisher FASB
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Amount of lessee's right to use underlying asset under operating lease.

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-Publisher FASB
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-SubTopic 20
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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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