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Leases - Supplemental Cash Flow Information and Non-Cash Activity Related to Leases (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 24,214	$ 61,310
Right-of-use assets obtained in exchange for new financing lease liabilities	10,448	14,683
Other non-cash increases in operating lease right-of-use assets	5,940	6,888
Other non-cash decreases in financing lease right-of-use assets	$ (1,563)	$ (517)

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- Definition

Other noncash increases (decreases) in finance lease right-of-use assets.

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Other noncash increases (decreases) in operating lease right-of-use assets.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971

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-SubTopic 20
-Section 50
-Paragraph 4
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Section 50
-Paragraph 4
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-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980

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