Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001026655 (http://www.sec.gov/CIK)

Accumulated Other Comprehensive Income (Loss) [Line Items]	Period [Axis]
	2016-01-01 - 2016-12-31			2015-01-01 - 2015-12-31
	Equity Components [Axis]			Equity Components [Axis]
	Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]	Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member]	Equity Component [Domain]	Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]	Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member]	Equity Component [Domain]
Accumulated Other Comprehensive Income (Loss), Net of Tax	0	2,645,000	2,645,000	0	2,830,000	2,830,000
Other comprehensive income before reclassifications	(289,000)	319,000	30,000	0	48,000	48,000
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion	(14,000)			0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), before Tax		(336,000)			(306,000)
Amounts reclassified from accumulated other comprehensive income, before tax			(350,000)			(306,000)
Other Comprehensive Income (Loss), Tax	103,000	(14,000)	89,000	0	73,000	73,000
Accumulated Other Comprehensive Income (Loss), Net of Tax	(200,000)	2,614,000	2,414,000	0	2,645,000	2,645,000