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Stock-based compensation (Tables)

3 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of stock options and SSARs outstanding, as well as related activity

The following table summarizes stock options and SSARs outstanding as of December 31, 2014 (there were no grants or activity related to stock options or SSARs during the three months ended December 31, 2014):

	Three Months Ended
	December 31, 2014
	Shares			Weighted- Average Exercise Price
Outstanding at end of period	650,223			$	18.12
Exercisable at end of period	493,398			$	18.39
Vested or expected to vest in the future	649,954			$	18.12

Schedule of nonvested stock awards activity

Activity relating to nonvested stock awards, including the Performance Shares, for the three months ended December 31, 2014 is as follows:

	Three Months Ended
	December 31, 2014
	Shares			Weighted Average Grant Date Fair Value
Beginning of period	746,567			$	15.76
Granted	390,870			19.07
Vested	(62,807	)		15.89
Forfeited	(106,191	)		4.65
End of period	968,439			$	18.31

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- Definition

Tabular disclosure of the changes in outstanding nonvested performance-based units.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock options and stock appreciation rights that were outstanding at the beginning and end of the year, exercisable at the end of the year, and the number of stock options and stock appreciation rights that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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