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Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2019

Summary of Company's Liabilities Measured at Fair Value

The carrying value and estimated fair value of long-term debt as of September 30, 2019 and December 31, 2018 were as follows:



	September 30, 2019				December 31, 2018
	Carrying value		Estimated fair value⁽¹⁾		Carrying value		Estimated fair value⁽¹⁾
Long-term debt	$	1,188,000	$	1,230,305	$	1,197,000	$	1,188,985

(1) The estimated fair value of our long-term debt is estimated primarily based on current bid prices for our long-term debt. Judgment is required to develop these estimates. As such, the fair value of our long-term debt is classified within Level 2, as defined under U.S. GAAP.