Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 61,498	$ 73,534
Accounts and notes receivable, net of allowance for doubtful accounts of $2,384 and $1,931 as of September 30, 2017 and December 31, 2016, respectively	112,392	84,156
Inventory, net	16,387	12,527
Restricted cash	43,646	32,213
Prepaid expenses, deferred costs, and other current assets	100,450	67,107
Total current assets	334,373	269,537
Property and equipment, net of accumulated depreciation of $410,775 and $397,972 as of September 30, 2017 and December 31, 2016, respectively	504,395	392,735
Intangible assets, net	220,233	121,230
Goodwill	771,152	533,075
Deferred tax asset, net	7,260	13,004
Prepaid expenses, deferred costs, and other noncurrent assets	51,868	35,115
Total assets	1,889,281	1,364,696
Current liabilities:
Current portion of other long-term liabilities	31,540	28,237
Accounts payable	49,926	44,965
Accrued liabilities	325,394	240,618
Total current liabilities	406,860	313,820
Long-term liabilities:
Long-term debt	949,775	502,539
Asset retirement obligations	58,425	45,086
Deferred tax liability, net	43,287	27,625
Other long-term liabilities	71,761	18,691
Total liabilities	1,530,108	907,761
Commitments and contingencies (See Note 13)
Shareholders' equity:
Ordinary shares, $0.01 nominal value; 45,680,321 and 45,326,430 issued and outstanding as of September 30, 2017 and December 31, 2016, respectively	457	453
Additional paid-in capital	312,661	311,041
Accumulated other comprehensive loss, net	(45,214)	(107,135)
Retained earnings	91,352	252,656
Total parent shareholders' equity	359,256	457,015
Noncontrolling interests	(83)	(80)
Total shareholders' equity	359,173	456,935
Total liabilities and shareholders' equity	$ 1,889,281	$ 1,364,696

The aggregate of amounts due from customers or clients, within one year of the balance sheet date (or one operating cycle, if longer), for goods or services that have been delivered or sold in the normal course of business and an amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date within one year of the balance sheet, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection and net of any write-downs taken for collection uncertainty on the part of the holder, respectively.

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- Definition

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).