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Equity Method Investments (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended
	Feb. 05, 2014	Mar. 31, 2014	Nov. 17, 2012
Equity method investments
Cash paid by 51% owner under net asset buy-out option to the entity		$ 1,189
Earnings data:
Company's equity in earnings		14
Alvah, Inc.
Equity method investments
Membership interest (as a percent)			49.00%
Cash paid by 51% owner under net asset buy-out option to the entity	1,189
Earnings data:
Company's equity in earnings		$ 14

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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