Consolidated Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
	Jan. 01, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net income		$ 22,457
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization		140,650
Impairment expense
Inventory write-down
Contingent consideration adjustment
Deferred income taxes		(31,244)
Provision for doubtful accounts		4,444	$ 1,700	$ 8,100
Equity (earnings) loss from unconsolidated affiliate		83	5,700	(500)
(Gain) loss on disposal of assets		(31,463)
Share-based compensation expense		23,437
Amortization of deferred financing costs		608
Accretion of original issue discount
Reorganization items, net
Changes in operating assets and liabilities:
Accounts receivable		(203,101)
Inventories		(26,072)
Prepaid expenses and other current assets		16,013
Accounts payable		41,801
Payroll and related costs and accrued expenses		38,104
Liabilities subject to compromise
Income taxes receivable (payable)		1,714
Other		2,663
Net cash provided by (used in) operating activities		94
Cash flows from investing activities:
Purchases of and deposits on property, plant and equipment		(210,186)
Proceeds from disposal of property, plant and equipment and non-core service lines		68,250
Payments made for business acquisitions		(133,750)
Other payments related to non-core service lines
Net cash used in investing activities		(275,686)
Cash flows from financing activities:
Proceeds from revolving debt and term loans
Payments on revolving debt and term loans
Proceeds from DIP Facility
Payments on DIP Facility
Payments of capital lease obligations
Financing costs		(1,739)
Proceeds from issuance of common stock, net of offering costs		215,920
Registration costs associated with issuance of common stock
Employee tax withholding on restricted stock vesting		(3,842)
Excess tax benefit (expense) from share-based compensation
Net cash provided by financing activities		210,339
Effect of exchange rate on cash		(2,102)
Net increase (decrease) in cash and cash equivalents		(67,355)
Cash and cash equivalents, beginning of year	$ 181,242	181,242
Cash and cash equivalents, end of year		113,887	181,242
Predecessor [Member]
Cash flows from operating activities:
Net income	298,582		(944,289)	(872,542)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization			217,440	276,353
Impairment expense			436,395	791,807
Inventory write-down			35,350	31,109
Contingent consideration adjustment			(4,700)	(11,147)
Deferred income taxes	(4,613)		(129,533)	(273,144)
Provision for doubtful accounts			1,735	8,071
Equity (earnings) loss from unconsolidated affiliate			5,663	(500)
(Gain) loss on disposal of assets			3,075	(544)
Share-based compensation expense			17,740	18,549
Amortization of deferred financing costs			48,310	10,926
Accretion of original issue discount			52,414	6,187
Reorganization items, net	(315,626)		30,611
Changes in operating assets and liabilities:
Accounts receivable			137,075	278,150
Inventories			4,244	21,123
Prepaid expenses and other current assets			24,447	(26,821)
Accounts payable			(75,016)	(168,607)
Payroll and related costs and accrued expenses	(1,436)		35,028	17,400
Liabilities subject to compromise	(33,000)
Income taxes receivable (payable)			3,604	(108)
Other			(6,965)	(3,257)
Net cash provided by (used in) operating activities	(56,093)		(107,372)	103,005
Cash flows from investing activities:
Purchases of and deposits on property, plant and equipment			(57,909)	(166,321)
Proceeds from disposal of property, plant and equipment and non-core service lines			32,809	4,468
Payments made for business acquisitions				(663,303)
Other payments related to non-core service lines			(1,827)
Net cash used in investing activities			(26,927)	(825,156)
Cash flows from financing activities:
Proceeds from revolving debt and term loans			174,000	1,339,400
Payments on revolving debt and term loans			(13,250)	(539,950)
Proceeds from DIP Facility			23,000
Payments on DIP Facility	(25,000)
Payments of capital lease obligations			(2,388)	(3,874)
Financing costs	(2,248)		(1,009)	(55,450)
Proceeds from issuance of common stock, net of offering costs	200,000			453
Registration costs associated with issuance of common stock				(1,465)
Employee tax withholding on restricted stock vesting			(497)	(2,621)
Excess tax benefit (expense) from share-based compensation			(5,592)	(2,367)
Net cash provided by financing activities	172,752		174,264	734,126
Effect of exchange rate on cash			(1,282)	3,908
Net increase (decrease) in cash and cash equivalents	116,659		38,683	15,883
Cash and cash equivalents, beginning of year	64,583	$ 64,583	25,900	10,017
Cash and cash equivalents, end of year	$ 181,242		$ 64,583	$ 25,900