v3.8.0.1

PER SHARE DATA (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Income available to common shareholders	$ 39,528	$ 37,817	$ 115,510	$ 95,058
Income available to common shareholders plus assumed exercise of all outstanding share-based awards	$ 39,528	$ 37,817	$ 115,510	$ 95,058
Income available to common shareholders (in shares)	90,912,000	94,304,000	91,974	94,378
Effect of dilutive share-based awards (in shares)	188,000	260,000	183	239
Income available to common shareholders plus assumed exercise all outstanding share-based awards (in shares)	91,100,000	94,564,000	92,157	94,617
Income available to common shareholders (in dollars per share)	$ 0.43	$ 0.40	$ 1.26	$ 1.01
Income available to common shareholders plus assumed exercise all outstanding share-based awards (in dollars per share)	$ 0.43	$ 0.40	$ 1.25	$ 1.00
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted shares (in shares)	0	32,400	0	45,000
Weighted average exercise price of antidilutive securities (in dollars per share)		$ 24.47		$ 24.71
Other Equity Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted shares (in shares)	0	0	0	0

The weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan, for securities excluded from diluted shares because their effect would be antidilutive.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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