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Acquisitions Schedule of pro forma information (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Business Combinations [Abstract]
Total revenues	$ 563,878	$ 549,707
Net income	$ 18,992	$ 311,434

X

- Definition

Business Acquisition, Pro Forma Net Income (Loss) including Portion Attributable to Noncontrolling Interest

+ References

No definition available.

+ Details

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X

- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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