Capital Stock (Narrative) (Detail) - $ / shares shares in Thousands				1 Months Ended
	May 03, 2018	Feb. 01, 2018	Dec. 07, 2017	Aug. 24, 2017	Mar. 31, 2018	[1]	Jun. 30, 2017	May 04, 2017
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	$ 0.065	$ 0.065
Dividends declared, date of declaration		Feb. 01, 2018	Dec. 07, 2017	Aug. 24, 2017
Dividend paid, date		Mar. 23, 2018	Dec. 28, 2017	Sep. 21, 2018
Dividends declared, date of record		Mar. 09, 2018	Dec. 18, 2017	Sep. 08, 2017
Subsequent event
Dividends Payable [Line Items]
Dividends declared, per share amount	$ 0.01
Dividends declared, date of declaration	May 03, 2018
Dividends payable, date to be paid	Jun. 22, 2018
Dividends declared, date of record	Jun. 08, 2018
Stock repurchase program
Dividends Payable [Line Items]
Number of shares authorized to be repurchased								5,000

[1] (as restated)