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Selected Unaudited Quarterly Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Selected Unaudited Quarterly Information
Revenues	$ 61,250	$ 61,877	$ 60,233	$ 60,507	$ 62,489	$ 61,190	$ 62,741	$ 63,263	$ 243,867	$ 249,683	$ 213,636
Income from continuing operations	15,412	3,166	3,903	12,533	4,295	1,567	3,713	3,573	35,014	13,148	17,294
Income from discontinued operations											2,533
Net income	$ 15,412	$ 3,166	$ 3,903	$ 12,533	$ 4,295	$ 1,567	$ 3,713	$ 3,573	$ 35,014	$ 13,148	$ 19,827
Net income per share, basic and diluted (in dollars per share)	$ 0.15	$ 0.03	$ 0.04	$ 0.13	$ 0.04	$ 0.02	$ 0.04	$ 0.04	$ 0.35	$ 0.13	$ 0.21
Weighted average number of shares outstanding, basic and diluted (in shares)	100,187,000	100,187,000	100,187,000	100,187,000	100,187,000	100,187,000	100,187,000	100,187,000	100,187,000	100,187,000	93,855,000

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- Definition

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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