Long-Term Debt and Long-Term Debt Payable to Related Parties (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Long-Term Debt and Long-Term Debt Payable to Related Parties

Long-term debt and long-term debt payable to related parties consisted of the following (in thousands):

	As of December 31,
	2018		2017
6.125% Senior Notes	$	537,926	$	—
Converted Term Loan		—		400,000
Term Loan		—		270,710
Long-term debt		537,926		670,710
2019 Promissory Note		—		300,000
2042 Promissory Note		—		112,500
Total long-term debt	$	537,926	$	1,083,210

Carrying Amounts and Estimated Fair Values of 2019 and 2042 Promissory Notes

As of December 31, 2017, the carrying amounts and estimated fair values of the 2019 and the 2042 Promissory Notes were as follows (in thousands):

	December 31, 2017
	Carrying Amount		Fair Value
2019 Promissory Note	$	300,000	$	313,125
2042 Promissory Note		112,500		116,550
	$	412,500	$	429,675