Annual report pursuant to Section 13 and 15(d)

Investments and Fair Value Measurements - Category of Financial Instruments Not Held at Fair Value (Detail)

v3.3.1.900
Investments and Fair Value Measurements - Category of Financial Instruments Not Held at Fair Value (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Financial Assets, Carrying Amount $ 108,211 $ 99,696
Financial liabilities, Carrying Amount 46,574 46,634
Cash    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Financial Assets, Carrying Amount 31,562 30,820
Financial Assets, Fair Value 31,562 30,820
Level I | Restricted Certificates of Deposit and Escrow    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Financial Assets, Carrying Amount 587 586
Financial Assets, Fair Value 587 586
Level II | Notes Payable    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Financial liabilities, Carrying Amount 4,514 4,124
Financial liabilities, Fair Value $ 4,514 $ 4,124