Fair Value Measurements - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	May. 04, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charge from classification of assets as held for sale		$ (1,350)		$ (1,350)	$ 0
Nonrecurring Adjustment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value adjustment	$ 572
Estimated selling costs	778
Discontinued Operations, Held-for-sale [Member] \| Services Business [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charge from classification of assets as held for sale		(1,350)	$ 0	$ (1,350)	$ 0
Discontinued Operations, Held-for-sale [Member] \| Services Business [Member] \| Nonrecurring Adjustment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charge from classification of assets as held for sale	$ (1,350)	$ (1,350)