Aggregate Consolidated Scheduled Debt Repayment (Detail) $ in Thousands	Dec. 31, 2015 USD ($)
Debt Disclosure [Abstract]
2016	$ 13,714
2017	50,572
2018	22,837
2019	145,757	[1]
2020	1,141
Later	18,385
Total	$ 252,406

[1] Includes repayment of $142.2 million of outstanding borrowings under the terms of our $185 million revolving credit agreement.