Summary of Operations and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

For the twelve months ended December 31, 2017, 2016 and 2015, options and share grants outstanding totaling approximately 3.5 million shares, 1.4 million shares and 1.4 million shares have been excluded from the computation of diluted earnings per share because their effect was anti-dilutive.

	Twelve Months Ended December 31,
	2017			2016		2015
Earnings (numerator)
Net (loss) income attributable to common stockholders	$	(1,805	)	$	15,935	$	24,274
Shares (denominator)
Weighted average common shares outstanding (basic)		48,824			48,597		48,210
Dilutive effect of stock options and stock awards outstanding		-			1,192		1,290
Adjusted weighted average common shares outstanding (diluted)		48,824			49,789		49,500
(Loss) earnings per share attributable to common stockholders
Basic	$	(0.04	)	$	0.33	$	0.50
Diluted	$	(0.04	)	$	0.32	$	0.49

Component of Comprehensive Income

There is no income tax expense or benefit associated with each component of comprehensive income. As of December 31, the accumulated balance for each component of comprehensive income is as follows:

	2017			2016
Unrealized foreign currency losses	$	(42,010	)	$	(75,075	)
Unrealized gain on interest rate swap, net of tax	$	2,524		$	1,506
Unrealized loss on defined benefit plan	$	(43,994	)	$	(39,097	)