Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data

	Quarter ended
	March 31			June 30			Sept. 30		Dec. 31
	(in thousands, except per share amounts)
2015
Revenues	$	699,479		$	627,838		$	626,286	$	650,011
Gross profit	129,860			104,219			106,743		97,045
Operating income	23,520		(1)	12,217		(2)	19,936		10,026		(3)
Net income	13,787			7,314			11,950		6,339
Basic net income per share	0.54			0.29			0.48		0.26
Diluted net income per share	0.54			0.29			0.48		0.26
2014
Revenues	$	636,999		$	564,621		$	560,303	$	595,865
Gross profit	106,176			95,453			100,817		101,359
Operating income	16,591			3,414		(4)	14,460		13,009		(5)
Net income	9,564			1,891			8,385		8,164
Basic net income per share	0.37			0.07			0.33		0.27		(6)
Diluted net income per share	0.37			0.07			0.33		0.27		(6)

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⁽¹⁾  Includes non-cash impairment and other charges in the first quarter of 2015 of $9.8 million. Please read Note 6, “Other Asset Impairments,” for additional information.

⁽²⁾  Includes non-cash impairment and other charges in the second quarter of 2015 of $1.3 million. Please read Note 6, “Other Asset Impairments,” for additional information.

⁽³⁾  Includes a reduction to non-cash impairment and other charges in the fourth quarter of 2015 of $0.6 million. Please read Note 6, “Other Asset Impairments,” for additional information.

⁽⁴⁾  Includes a non-cash impairment charge in the first quarter of 2014 of $2.5 million. Please read Note 5, “Goodwill and Other Intangible Assets,” for additional information.

⁽⁵⁾  Includes a $1.2 million non-cash charge in the fourth quarter of 2014. Please read Note 1, “Accounting Policies,” for additional information.

⁽⁶⁾  Includes the impact of dividends exceeding earnings under the two-class method, resulting in a $0.05 earnings per share decrease in the fourth quarter of 2014. Please read Note 11, “Net Income Per Share,” for additional information.