Fair Value Disclosures (Tables)

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures

Estimated Fair Values and Carrying Amounts of Assets and Liabilities

	Level in Fair Value Hierarchy	March 31, 2017				December 31, 2016
		Carrying  Amount		Fair Value		Carrying  Amount		Fair Value
Assets:
Cash and cash equivalents	1	$	205,192	$	205,192	$	567,599	$	567,599
Restricted cash, current and non-current	1	120,128		120,128		129,547		129,547
Liabilities:
Total debt and other obligations	2	13,492,973		14,005,423		12,171,142		12,660,013