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Leases - Schedule of Supplemental Data (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$ 47,697	$ 45,576
Operating cash flows for finance leases	2,977	2,973
Financing cash flows for finance leases	3,151	2,701
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	21,560	15,623
Finance leases	$ 2,896	$ 2,457

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