Geographic Information (Revenue by Geographic Locations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015 Reportable_Segments	Mar. 31, 2014
Segment Reporting [Abstract]
Number of reportable segments	1us-gaap_NumberOfReportableSegments
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	$ 63,753us-gaap_SalesRevenueNet	$ 51,404us-gaap_SalesRevenueNet
Long-lived assets	530,233us-gaap_NoncurrentAssets	446,547us-gaap_NoncurrentAssets
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	48,537	34,800
Long-lived assets	384,092	304,070
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	685	1,437
Long-lived assets	7,164	8,442
Latin America
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	1,496	1,482
Long-lived assets	7,708	11,282
Australia
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	8,678	9,729
Long-lived assets	524	785
Singapore
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	1,047	1,144
Long-lived assets	68,493	68,693
New Zealand
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	578	650
Long-lived assets	319	99
India
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	989	110
Long-lived assets	37,426	24,795
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	1,743	2,052
Long-lived assets	$ 24,507	$ 28,381

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 41

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9038-108599

+ Details

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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- Details

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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- Details

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