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Share-Based Compensation and Other Compensation Matters (Details)
6 Months Ended
May 30, 2016
shares
Mar. 01, 2016
USD ($)
shares
Jun. 30, 2016
USD ($)
Percentile_Rank
$ / shares
shares
Chief Executive Officer and Executive Vice President      
Other Share-based Compensation Additional Disclosures      
Executive transition cost | $     $ 4,400,000
Performance share units      
Share-Based Compensation      
Stock awards granted (in shares or units) | shares   26,299  
Aggregate grant date fair value | $   $ 1,000,000  
Potential earned PSUs payout for defined levels of performance under awards      
Earned PSUs payout (as a percent of PSUs granted) on 75th or greater percentile rank     200.00%
Earned PSUs payout (as a percent of PSUs granted) on 50th percentile rank     100.00%
Earned PSUs payout (as a percent of PSUs granted) on 25th percentile rank     50.00%
Performance share units granted on percentile rank below 25th (as a percent)     0.00%
The number of percentile ranks to fall between to earn interpolated PSUs between such percentile ranks, conditioned on the percentile rank exceeding 25% | Percentile_Rank     2
Assumptions used to value stock awards      
Performance period of the award     3 years
Weighted average grant date fair value (in dollars per share) | $ / shares     $ 38.21
Baseline value per common share (in dollars per share) | $ / shares     $ 23.90
Expected volatility of common shares (as a percent)     20.40%
Risk-free interest rate (as a percent)     0.96%
Restricted shares      
Share-Based Compensation      
Stock awards granted (in shares or units) | shares     197,087
Aggregate grant date fair value | $     $ 4,800,000
Assumptions used to value stock awards      
Weighted average grant date fair value (in dollars per share) | $ / shares     $ 24.11
Other Share-based Compensation Additional Disclosures      
Shares vested (in shares) | shares     159,171
Weighted average fair value of shares vested (in dollars per share) | $ / shares     $ 27.62
Aggregate intrinsic value of awards upon vesting | $     $ 3,800,000
Deferred share award      
Share-Based Compensation      
Stock awards granted (in shares or units) | shares     24,944
Aggregate grant date fair value | $     $ 671,000
Assumptions used to value stock awards      
Weighted average grant date fair value (in dollars per share) | $ / shares     $ 26.89
Other Share-based Compensation Additional Disclosures      
Shares vested (in shares) | shares     12,028
Weighted average fair value of shares vested (in dollars per share) | $ / shares     $ 26.70
Aggregate intrinsic value of awards upon vesting | $     $ 322,000
2014 and 2015 PSU Grants | Performance share units | Executive Vice President      
Other Share-based Compensation Additional Disclosures      
Shares issued (in shares) | shares 10,326