The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Gross carrying amount before accumulated amortization as of the balance sheet date to an asset acquired in a business combination representing a favorable existing relationship with customers having a finite beneficial life.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Gross carrying amount before accumulated amortization as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a specified period of time.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Gross carrying amount before accumulated amortization as of the balance sheet date of intangible assets not otherwise specified in the taxonomy having a reasonably expected period of economic benefit.

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Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Intangible Assets [Abstract]
Trademarks	$ 778		$ 778		$ 778
Customer intangible assets	68,991		68,991		68,991
Other	1,274		1,274		1,481
Accumulated amortization	(18,971)		(18,971)		(15,785)
Intangible assets, net	52,072		52,072		55,465
Amortization expense on intangible assets	1,131	1,162	3,393	3,485
Trademarks [Member]
Intangible Assets [Abstract]
Accumulated amortization	(628)		(628)		(475)
Customer Intangible Assets [Member]
Intangible Assets [Abstract]
Accumulated amortization	(17,675)		(17,675)		(14,555)
Other [Member]
Intangible Assets [Abstract]
Accumulated amortization	$ (668)		$ (668)		$ (755)