Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 53,177	$ 73,534
Accounts and notes receivable, net of allowance for doubtful accounts of $2,095 and $1,931 as of June 30, 2017 and December 31, 2016, respectively	98,751	84,156
Inventory, net	14,232	12,527
Restricted cash	46,909	32,213
Prepaid expenses, deferred costs, and other current assets	86,329	67,107
Total current assets	299,398	269,537
Property and equipment, net of accumulated depreciation of $421,340 and $397,972 as of June 30, 2017 and December 31, 2016, respectively	505,454	392,735
Intangible assets, net	278,471	121,230
Goodwill	903,101	533,075
Deferred tax asset, net	9,727	13,004
Prepaid expenses, deferred costs, and other noncurrent assets	38,881	35,115
Total assets	2,035,032	1,364,696
Current liabilities:
Current portion of other long-term liabilities	32,793	28,237
Accounts payable	44,960	44,965
Accrued liabilities	300,435	240,618
Total current liabilities	378,188	313,820
Long-term liabilities:
Long-term debt	973,339	502,539
Asset retirement obligations	57,096	45,086
Deferred tax liability, net	49,915	27,625
Other long-term liabilities	68,421	18,691
Total liabilities	1,526,959	907,761
Commitments and contingencies (See Note 13)
Shareholders' equity:
Ordinary shares, $0.01 nominal value; 45,650,302 and 45,326,430 issued and outstanding as of June 30, 2017 and December 31, 2016, respectively	457	453
Additional paid-in capital	309,052	311,041
Accumulated other comprehensive loss, net	(68,275)	(107,135)
Retained earnings	266,913	252,656
Total parent shareholders' equity	508,147	457,015
Noncontrolling interests	(74)	(80)
Total shareholders' equity	508,073	456,935
Total liabilities and shareholders' equity	$ 2,035,032	$ 1,364,696