Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 1,063,777	$ 748,476
Short-term investments	4,242	3,409
Accounts receivable, net	545,734	396,245
Other current assets	235,871	319,396
Total current assets	1,849,624	1,467,526
Long-term investments	6,389	10,042
Property, plant and equipment, net	8,746,595	7,199,210
Goodwill	4,225,553	2,986,064
Intangible assets, net	2,382,230	719,231
Other assets	263,546	226,298
Total assets	17,473,937	12,608,371
Current liabilities:
Accounts payable and accrued expenses	612,593	581,739
Accrued property, plant and equipment	192,381	144,842
Current portion of capital lease and other financing obligations	62,937	101,046
Current portion of mortgage and loans payable	83,022	67,928
Other current liabilities	140,502	133,140
Total current liabilities	1,091,435	1,028,695
Capital lease and other financing obligations, less current portion	1,584,287	1,410,742
Mortgage and loans payable, less current portion	2,511,447	1,369,087
Senior notes	5,047,426	3,810,770
Other liabilities	715,679	623,248
Total liabilities	10,950,274	8,242,542
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock, $0.001 par value per share: 300,000,000 shares authorized; 77,944,939 and 71,409,015 shares outstanding	78	72
Additional paid-in capital	9,648,817	7,413,519
Treasury stock, at cost; 405,472 and 408,415 shares	(146,982)	(147,559)
Accumulated dividends	(2,274,503)	(1,969,645)
Accumulated other comprehensive loss	(811,321)	(949,142)
Retained earnings	107,574	18,584
Total stockholders' equity	6,523,663	4,365,829
Total liabilities and stockholders' equity	$ 17,473,937	$ 12,608,371