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Goodwill (Tables)
 9 Months Ended
Sep. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract]  
Changes in Goodwill

 

 

(In Thousands)

 

 

 

Mid-America

 

 

Southeast

 

 

West

 

 

 

 

 

 

 

Group

 

 

Group

 

 

Group

 

 

Total

 

Balance at January 1, 2017

 

$

281,403

 

 

$

50,346

 

 

$

1,827,588

 

 

$

2,159,337

 

Adjustments to purchase price allocations

 

 

—

 

 

 

—

 

 

 

723

 

 

 

723

 

Balance at September 30, 2017

 

$

281,403

 

 

$

50,346

 

 

$

1,828,311

 

 

$

2,160,060