Reportable Segments Segments Text Disclosures (Details) $ in Thousands		3 Months Ended																12 Months Ended
		Dec. 31, 2015 USD ($)	[1]	Sep. 30, 2015 USD ($)	[1]	Jun. 30, 2015 USD ($)	[1]	Mar. 31, 2015 USD ($)	[1]	Dec. 31, 2014 USD ($)	[1]	Sep. 30, 2014 USD ($)	[1]	Jun. 30, 2014 USD ($)	[1]	Mar. 31, 2014 USD ($)	[1]	Dec. 31, 2015 USD ($) segments	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments | segments																		4
Gain on sale of Pacific Northwest offices																		$ 0	$ 0	$ 10,574
Restructuring expense																		3,724	739	0
Income from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		$ 1,455		$ 1,316		$ 1,546		$ 2,094		$ 1,510		$ 1,272		$ 1,450		$ 1,928		6,411	6,160	7,792
Holding Company and Eliminations Segment [Member]
Segment Reporting Information [Line Items]
Income from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	[2]																	$ 6,411	$ 6,160	$ 7,792

[1] Due to rounding, the sum of the four quarters may not add to the year to date total.

[2] Net income from discontinued operations for the years ended December 31, 2015, 2014 and 2013 of $6.4 million, $6.2 million, and $7.8 million, respectively, are included in Holding Company and Eliminations in the calculation of net income attributable to the Company.