Capital Stock (Narrative) (Detail) - $ / shares shares in Thousands	1 Months Ended
	Sep. 20, 2016	Aug. 25, 2016	Sep. 30, 2016	Jun. 30, 2016	May 08, 2014
Dividends Payable [Line Items]
Common stock, shares authorized			75,000	75,000
Preferred stock, shares authorized			2,000	2,000
Dividends declared, per share amount		$ 0.065
Dividend paid, per share amount	$ 0.065
Dividends declared, date of declaration		Aug. 25, 2016
Dividend paid, date		Sep. 20, 2016
Dividends declared, date of record		Sep. 09, 2016
Stock repurchase program
Dividends Payable [Line Items]
Number of shares authorized to be repurchased					5,000