Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income - Changes in AOCI by Component (Details)

v3.6.0.2
Accumulated Other Comprehensive Income - Changes in AOCI by Component (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2016
Dec. 31, 2015
AOCI Attributable to Parent [Abstract]    
Beginning balance $ 708,665  
OCI, net of tax (24,154) $ (7,438)
Ending balance 687,763  
AOCI Attributable to Noncontrolling Interest [Abstract]    
Beginning balance 669  
OCI, net of tax (24,154) (7,438)
Ending balance 614  
Post-retirement benefit plans    
AOCI Attributable to Parent [Abstract]    
Beginning balance (56,050) (43,474)
OCI before reclassification 0 0
Amounts reclassified from AOCI 1,536 1,102
OCI, net of tax 1,536 1,102
Ending balance (54,514) (42,372)
AOCI Attributable to Noncontrolling Interest [Abstract]    
OCI before reclassification 0 0
Amounts reclassified from AOCI 1,536 1,102
OCI, net of tax 1,536 1,102
Currency translation adjustment    
AOCI Attributable to Parent [Abstract]    
Beginning balance (122,259) (104,604)
OCI before reclassification (31,342) (10,069)
Amounts reclassified from AOCI 0 0
OCI, net of tax (31,342) (10,069)
Ending balance (153,601) (114,673)
AOCI Attributable to Noncontrolling Interest [Abstract]    
OCI before reclassification (31,342) (10,069)
Amounts reclassified from AOCI 0 0
OCI, net of tax (31,342) (10,069)
Derivatives    
AOCI Attributable to Parent [Abstract]    
Beginning balance (3,559) (2,248)
OCI before reclassification 5,100 1,076
Amounts reclassified from AOCI 493 506
OCI, net of tax 5,593 1,582
Ending balance 2,034 (666)
AOCI Attributable to Noncontrolling Interest [Abstract]    
OCI before reclassification 5,100 1,076
Amounts reclassified from AOCI 493 506
OCI, net of tax 5,593 1,582
Parent    
AOCI Attributable to Parent [Abstract]    
Beginning balance (181,868) (150,326)
OCI before reclassification (26,242) (8,993)
Amounts reclassified from AOCI 2,029 1,608
OCI, net of tax (24,213) (7,385)
Ending balance (206,081) (157,711)
AOCI Attributable to Noncontrolling Interest [Abstract]    
OCI before reclassification (26,242) (8,993)
Amounts reclassified from AOCI 2,029 1,608
OCI, net of tax (24,213) (7,385)
Post-retirement benefit plans    
AOCI Attributable to Parent [Abstract]    
OCI before reclassification 0 0
OCI, net of tax 0 0
AOCI Attributable to Noncontrolling Interest [Abstract]    
Beginning balance 0 0
OCI before reclassification 0 0
OCI, net of tax 0 0
Ending balance 0 0
Currency translation adjustment    
AOCI Attributable to Parent [Abstract]    
OCI before reclassification 59 (53)
OCI, net of tax 59 (53)
AOCI Attributable to Noncontrolling Interest [Abstract]    
Beginning balance 277 366
OCI before reclassification 59 (53)
OCI, net of tax 59 (53)
Ending balance 336 313
Derivatives    
AOCI Attributable to Parent [Abstract]    
OCI before reclassification 0 0
OCI, net of tax 0 0
AOCI Attributable to Noncontrolling Interest [Abstract]    
Beginning balance 0 0
OCI before reclassification 0 0
OCI, net of tax 0 0
Ending balance 0 0
Noncontrolling Interest    
AOCI Attributable to Parent [Abstract]    
OCI before reclassification 59 (53)
OCI, net of tax 59 (53)
AOCI Attributable to Noncontrolling Interest [Abstract]    
Beginning balance 277 366
OCI before reclassification 59 (53)
OCI, net of tax 59 (53)
Ending balance $ 336 $ 313