Fair Value Measurement - Fair Value of Assets (Liabilities) Not Measured at Fair Value In Consolidated Balance Sheets (Details) - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016
Level 1 | Fixed-Rate Long-Term Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long term debt, fair value	[1]	$ 0	$ 0
Level 1 | Perfect Home Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	[2]	0	0
Level 2 | Fixed-Rate Long-Term Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long term debt, fair value	[1]	(279,418)	(368,408)
Level 2 | Perfect Home Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	[2]	0	0
Level 3 | Fixed-Rate Long-Term Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long term debt, fair value	[1]	0	0
Level 3 | Perfect Home Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	[2]	$ 22,252	$ 20,519

[1] The fair value of fixed-rate long-term debt is estimated using the present value of underlying cash flows discounted at a current market yield for similar instruments. The carrying amount of fixed-rate long-term debt was $265.0 million and $350.0 million at June 30, 2017 and December 31, 2016, respectively.

[2] The Perfect Home Notes are carried at cost, which approximates fair value. The Company periodically reviews the carrying amount utilizing company-specific transactions or changes in Perfect Home’s financial performance to determine if the Notes are impaired. As of June 30, 2017, the Company considered the fair value of the Note's secured assets in determining if the Notes are impaired. The fair value of the secured assets is determined based on the present value of the estimated future net cash inflows of the Perfect Home assets that are pledged as security interest on the Notes.