Summary of Operations and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

For the twelve months ended December 31, 2016, 2015 and 2014, options and share grants outstanding totaling approximately 1.4 million shares, 1.4 million shares and 2.0 million shares have been excluded from the computation of diluted earnings per share because their effect was anti-dilutive.

	Twelve Months Ended December 31,
	2016		2015		2014
Earnings (numerator)
Net income attributable to common stockholders	$	15,935	$	24,274	$	63,678
Shares (denominator)
Weighted average common shares outstanding (basic)		48,597		48,210		47,184
Dilutive effect of stock options and stock awards outstanding		1,192		1,290		1,410
Adjusted weighted average common shares outstanding (diluted)		49,789		49,500		48,594
Earnings per share attributable to common stockholders
Basic	$	0.33	$	0.50	$	1.35
Diluted	$	0.32	$	0.49	$	1.31

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:

	2016			2015
Unrealized foreign currency losses	$	(75,706	)	$	(36,164	)
Unrealized gain on interest rate swap, net of tax	$	2,317		$	-
Unrealized loss on defined benefit plan	$	(39,097	)	$	(31,320	)