Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in goodwill

The table below summarizes changes in goodwill recorded by the Company during the periods ended September 30, 2013 and December 31, 2012:

	September 30, 2013		December 31, 2012
Beginning balance, January 1	$	34,817	$	32,168
Additions	—		2,649
Ending balance	$	34,817	$	34,817

Schedule of changes and amortization of finite-lived intangible assets

The tables below present the activity and amortizations of finite-lived intangible assets:

	Nine months ended September 30,
	2013			2012
Intangible assets, January 1	$	7,602		$	6,900
Additions	—			—
Total intangible assets, end of period	7,602			6,900
Accumulated amortization	$	(6,975	)	$	(6,900	)
Current year amortization	(362		)
Total accumulated amortization	(7,337		)	(6,900		)
Net intangible assets, end of period	$	265		$	—

Schedule of future amortization expense of acquired finite-lived intangible assets

Intangible assets that were acquired in 2012 as part of the purchase of West Construction amortize over a period of one to three years, as follows:

	2013		2014		2015
Amortization	$	59	$	111	$	97