Capital Stock (Additional Information) (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) stockholder $ / shares shares	Apr. 30, 2015 USD ($) $ / shares	Mar. 31, 2015 $ / shares	Dec. 31, 2014 USD ($) $ / shares shares
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01	$ 1.00	$ 0.01
Preferred stock, issued (in shares) | shares	0			0
Preferred stock, authorized | shares	500,000			500,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01	$ 0.10	$ 0.01
Common stock reclassified to capital in excess of par	$ 247			$ 2,463
Capital in excess of par value	$ 76,746			$ 68,961
Number of Stockholders | stockholder	6,289
Common stock, shares, outstanding (in shares) | shares	17,140,426
Scenario, Adjustment
Class of Stock [Line Items]
Common stock reclassified to capital in excess of par		$ 2,200
Capital in excess of par value		$ 2,200