CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 108,998	$ 120,112
Trade and other receivables, net	355,729	318,641
Inventories	121,879	111,393
Prepaid expenses and other assets	418,817	258,171
Derivative financial instruments	94,473	99,320
Total current assets	1,099,896	907,637
Property and equipment, net	21,429,719	19,735,180
Goodwill	288,418	288,512
Other assets	1,239,003	1,429,597
Total assets	24,057,036	22,360,926
Current liabilities
Current portion of long-term debt	1,177,626	1,188,514
Accounts payable	418,616	360,113
Accrued interest	61,175	47,469
Accrued expenses and other liabilities	751,585	903,022
Derivative financial instruments	44,203	47,464
Customer deposits	3,049,145	2,308,291
Total current liabilities	5,502,350	4,854,873
Long-term debt	7,341,463	6,350,937
Other long-term liabilities	439,525	452,813
Commitments and contingencies (Note 7)
Shareholders’ equity
Preferred stock ($0.01 par value; 20,000,000 shares authorized; none outstanding)	0	0
Common stock ($0.01 par value; 500,000,000 shares authorized; 235,779,344 and 235,198,901 shares issued, June 30, 2018 and December 31, 2017, respectively)	2,358	2,352
Paid-in capital	3,397,561	3,390,117
Retained earnings	9,429,784	9,022,405
Accumulated other comprehensive loss	(265,200)	(334,265)
Treasury stock (25,293,576 and 21,861,308 common shares at cost, June 30, 2018 and December 31, 2017, respectively)	(1,790,805)	(1,378,306)
Total shareholders’ equity	10,773,698	10,702,303
Total liabilities and shareholders' equity	$ 24,057,036	$ 22,360,926

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).