Geographic Information (Details) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Sep. 30, 2013 USD ($)	Jun. 30, 2013 USD ($)	Mar. 31, 2013 USD ($)	Dec. 31, 2015 USD ($) Reportable_Segments	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of reportable segments | Reportable_Segments													1
External Revenues	$ 70,204	$ 66,813	$ 64,712	$ 63,753	$ 60,633	$ 50,808	$ 51,476	$ 51,404	$ 50,847	$ 50,293	$ 51,004	$ 52,566	$ 265,482	$ 214,321	$ 204,710
Long-lived assets	559,159				530,450				451,515				559,159	530,450	451,515
Effect of Exchange Rate on Revenue													(10,700)	(3,200)	(3,800)
Increase (decrease) in reported revenue													$ 51,200
Increase (decrease) in reported revenue, percentage													23.90%
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues													$ 205,210	147,971	139,519
Long-lived assets	374,432				383,233				309,732				374,432	383,233	309,732
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues													4,490	5,239	7,431
Long-lived assets	6,632				7,835				8,784				6,632	7,835	8,784
Latin America
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues													5,715	7,036	5,508
Long-lived assets	6,091				9,380				10,886				6,091	9,380	10,886
Australia
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues													30,634	36,319	38,260
Long-lived assets	199				583				803				199	583	803
Effect of Exchange Rate on Revenue													(6,000)
Singapore
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues													5,317	4,384	3,114
Long-lived assets	68,852				68,526				68,987				68,852	68,526	68,987
New Zealand
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues													2,153	2,578	2,311
Long-lived assets	221				334				97				221	334	97
India
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues													3,538	1,929	650
Long-lived assets	74,693				34,691				23,784				74,693	34,691	23,784
Increase (decrease) in reported revenue													$ 1,700
Increase (decrease) in reported revenue, percentage													46.00%
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues													$ 8,425	8,865	7,917
Long-lived assets	$ 28,039				$ 25,868				$ 28,442				28,039	$ 25,868	$ 28,442
BRAZIL
Revenues from External Customers and Long-Lived Assets [Line Items]
Effect of Exchange Rate on Revenue													$ (2,300)