Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2012

Segment Reporting [Abstract]

Revenues and income from operations for reportable segments

	Three Months Ended June  30, 2012			Three Months Ended June 30, 2011			Six Months Ended June 30, 2012			Six Months Ended June 30, 2011
Revenues
United States, excluding All Points and TagWorks	$	132,841		$	122,846		$	248,169		$	226,708
All Points		5,115			4,163			9,624			6,995
TagWorks		3,747			3,835			8,180			4,486
Canada		3,889			3,155			6,297			5,534
Mexico		1,454			1,397			3,011			2,967
Australia		195			—			333			—
Total revenues	$	147,241		$	135,396		$	275,614		$	246,690
Segment Income (Loss) from Operations
United States, excluding All Points and Tagworks	$	14,405		$	14,227		$	22,000		$	17,043
All Points		321			321			413			182
TagWorks		549			717			1,682			881
Canada		(214	)		156			(433	)		(119	)
Mexico		38			347			389			860
Australia		(146	)		(64	)		(250	)		(109	)
Total segment income from operations	$	14,953		$	15,704		$	23,801		$	18,738
Reconciliation (1)
Total segment income from operations	$	14,953		$	15,704		$	23,801		$	18,738
Elimination of intercompany profit (loss)		(12	)		(9	)		(25	)		44
Total income from operations	$	14,941		$	15,695		$	23,776		$	18,782

Assets by segment

	June 30, 2012		December 31, 2011
Assets
United States, excluding All Points and Tagworks	$	1,034,654	$	1,025,334
All Points		9,271		8,052
TagWorks		61,266		62,912
Canada		16,271		13,269
Mexico		17,302		17,097
Australia		1,348		1,187
Total Assets	$	1,140,112	$	1,127,851