SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Estimated Useful Lives of Assets

Classification	Useful Life
Buildings		20-40 years
Enterprise Resource Planning (“ERP”) System		15 years
Leasehold improvements		2-15 years
Machinery and equipment		2-12 years
Furniture and fixtures		2-10 years
Computers and computer software		2-5 years
Automobiles		2-5 years

Summary of Goodwill

A summary of goodwill is as follows (in thousands):

	Twelve Months Ended December 31, 2017
	TeamQualspec			TeamFurmanite			Quest Integrity		Total
Balance at beginning of period	$	213,475		$	109,059		$	33,252	$	355,786
Acquisitions	—			—			—		—
Foreign currency adjustments	1,876			1,642			741		4,259
Impairment loss	(21,140		)	(54,101		)	—		(75,241		)
Balance at end of period	$	194,211		$	56,600		$	33,993	$	284,804

	Twelve Months Ended December 31, 2016
	TeamQualspec		TeamFurmanite			Quest Integrity			Total
Balance at beginning of year	$	207,497	$	19,874		$	29,283		$	256,654
Acquisitions	5,955		89,646			4,137			99,738
Foreign currency adjustments	23		(461		)	(168		)	(606		)
Impairment loss	—		—			—			—
Balance at end of year	$	213,475	$	109,059		$	33,252		$	355,786

Amounts Used In Basic and Diluted Earnings (Loss) Per Share

Amounts used in basic and diluted earnings (loss) per share, for all periods presented, are as follows (in thousands):

	Twelve Months Ended December 31,		Seven Months Ended December 31,	Twelve Months Ended May 31,
	2017	2016	2015	2015
Weighted-average number of basic shares outstanding	29,849	28,095	20,852	20,500
Stock options, stock units and performance awards	—	—	260	419
Conversion of noncontrolling interest	—	—	313	732
Convertible senior notes	—	—	—	—
Total shares and dilutive securities	29,849	28,095	21,425	21,651