Supplemental Cash Flow Information - Supplemental Cash Flow Related to Leases (Details) $ in Thousands	3 Months Ended
Mar. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ (29,447)
Operating cash flows from finance leases	(21)
Financing cash flows from finance leases	(630)
Lease assets obtained in exchange for lease liabilities:
Operating leases	15,939
Finance leases	$ 401

Cash Flow, Lessee [Abstract]

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- Definition

Right-Of-Use Asset Obtained In Exchange For Finance And Operating Lease Liabilities [Abstract]

+ References

No definition available.

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- Definition

Amount of interest paid 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 cash outflow for principal payment on finance lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of increase in right-of-use asset obtained in exchange for finance lease liability.

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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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