Basis of Presentation and Significant Accounting Policies - Summary of Changes in Warranty Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Movement in Standard Product Warranty Accrual [Roll Forward]
Warranty liability, beginning of period	$ 18,117	$ 18,155	$ 14,935	$ 14,317
Warranty provision during period	7,423	9,601	5,641
Warranty payments during period	8,555	7,409	5,676
Warranty charges related to construction services projects	1,094	1,028	653
Warranty liability, end of period	$ 18,117	$ 18,155	$ 14,935